diff --git a/src/error/GraphQLError.d.ts b/src/error/GraphQLError.d.ts
index e5b754b21b..d603dd9037 100644
--- a/src/error/GraphQLError.d.ts
+++ b/src/error/GraphQLError.d.ts
@@ -1,8 +1,8 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { ASTNode } from '../language/ast';
-import { Source } from '../language/source';
-import { SourceLocation } from '../language/location';
+import type { ASTNode } from '../language/ast';
+import type { Source } from '../language/source';
+import type { SourceLocation } from '../language/location';
 
 /**
  * A GraphQLError describes an Error found during the parse, validate, or
diff --git a/src/error/formatError.d.ts b/src/error/formatError.d.ts
index 8877e5f7fd..0fd89cd38c 100644
--- a/src/error/formatError.d.ts
+++ b/src/error/formatError.d.ts
@@ -1,6 +1,6 @@
-import { SourceLocation } from '../language/location';
+import type { SourceLocation } from '../language/location';
 
-import { GraphQLError } from './GraphQLError';
+import type { GraphQLError } from './GraphQLError';
 
 /**
  * Given a GraphQLError, format it according to the rules described by the
diff --git a/src/error/locatedError.d.ts b/src/error/locatedError.d.ts
index 696a1338ba..ae95fe13d0 100644
--- a/src/error/locatedError.d.ts
+++ b/src/error/locatedError.d.ts
@@ -1,8 +1,8 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { ASTNode } from '../language/ast';
+import type { ASTNode } from '../language/ast';
 
-import { GraphQLError } from './GraphQLError';
+import type { GraphQLError } from './GraphQLError';
 
 /**
  * Given an arbitrary value, presumably thrown while attempting to execute a
diff --git a/src/error/syntaxError.d.ts b/src/error/syntaxError.d.ts
index 1c5413c7e0..1b893b6f68 100644
--- a/src/error/syntaxError.d.ts
+++ b/src/error/syntaxError.d.ts
@@ -1,6 +1,6 @@
-import { Source } from '../language/source';
+import type { Source } from '../language/source';
 
-import { GraphQLError } from './GraphQLError';
+import type { GraphQLError } from './GraphQLError';
 
 /**
  * Produces a GraphQLError representing a syntax error, containing useful
diff --git a/src/execution/execute.d.ts b/src/execution/execute.d.ts
index adc48e801c..8fc05a7d3a 100644
--- a/src/execution/execute.d.ts
+++ b/src/execution/execute.d.ts
@@ -1,21 +1,21 @@
-import { Maybe } from '../jsutils/Maybe';
-import { ObjMap } from '../jsutils/ObjMap';
+import type { Maybe } from '../jsutils/Maybe';
+import type { ObjMap } from '../jsutils/ObjMap';
 
-import { PromiseOrValue } from '../jsutils/PromiseOrValue';
-import { Path } from '../jsutils/Path';
+import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
+import type { Path } from '../jsutils/Path';
 
-import { GraphQLError } from '../error/GraphQLError';
-import { GraphQLFormattedError } from '../error/formatError';
+import type { GraphQLError } from '../error/GraphQLError';
+import type { GraphQLFormattedError } from '../error/formatError';
 
-import {
+import type {
   DocumentNode,
   OperationDefinitionNode,
   SelectionSetNode,
   FieldNode,
   FragmentDefinitionNode,
 } from '../language/ast';
-import { GraphQLSchema } from '../type/schema';
-import {
+import type { GraphQLSchema } from '../type/schema';
+import type {
   GraphQLField,
   GraphQLFieldResolver,
   GraphQLResolveInfo,
diff --git a/src/execution/values.d.ts b/src/execution/values.d.ts
index b88943a04d..0c4fff07c5 100644
--- a/src/execution/values.d.ts
+++ b/src/execution/values.d.ts
@@ -1,16 +1,16 @@
-import { Maybe } from '../jsutils/Maybe';
-import { ObjMap } from '../jsutils/ObjMap';
+import type { Maybe } from '../jsutils/Maybe';
+import type { ObjMap } from '../jsutils/ObjMap';
 
-import { GraphQLError } from '../error/GraphQLError';
-import {
+import type { GraphQLError } from '../error/GraphQLError';
+import type {
   FieldNode,
   DirectiveNode,
   VariableDefinitionNode,
 } from '../language/ast';
 
-import { GraphQLDirective } from '../type/directives';
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLField } from '../type/definition';
+import type { GraphQLDirective } from '../type/directives';
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLField } from '../type/definition';
 
 type CoercedVariableValues =
   | { errors: ReadonlyArray<GraphQLError>; coerced?: never }
diff --git a/src/graphql.d.ts b/src/graphql.d.ts
index 94b31bb414..565343d8e7 100644
--- a/src/graphql.d.ts
+++ b/src/graphql.d.ts
@@ -1,9 +1,12 @@
-import { Maybe } from './jsutils/Maybe';
+import type { Maybe } from './jsutils/Maybe';
 
-import { Source } from './language/source';
-import { GraphQLSchema } from './type/schema';
-import { GraphQLFieldResolver, GraphQLTypeResolver } from './type/definition';
-import { ExecutionResult } from './execution/execute';
+import type { Source } from './language/source';
+import type { GraphQLSchema } from './type/schema';
+import type {
+  GraphQLFieldResolver,
+  GraphQLTypeResolver,
+} from './type/definition';
+import type { ExecutionResult } from './execution/execute';
 
 /**
  * This is the primary entry point function for fulfilling GraphQL operations
diff --git a/src/language/ast.d.ts b/src/language/ast.d.ts
index 2e2850a423..bec16aea31 100644
--- a/src/language/ast.d.ts
+++ b/src/language/ast.d.ts
@@ -1,5 +1,5 @@
-import { Source } from './source';
-import { TokenKindEnum } from './tokenKind';
+import type { Source } from './source';
+import type { TokenKindEnum } from './tokenKind';
 
 /**
  * Contains a range of UTF-8 character offsets and token references that
diff --git a/src/language/lexer.d.ts b/src/language/lexer.d.ts
index 1dc8be70a2..5308b48bd0 100644
--- a/src/language/lexer.d.ts
+++ b/src/language/lexer.d.ts
@@ -1,6 +1,6 @@
-import { Token } from './ast';
-import { Source } from './source';
-import { TokenKindEnum } from './tokenKind';
+import type { Token } from './ast';
+import type { Source } from './source';
+import type { TokenKindEnum } from './tokenKind';
 
 /**
  * Given a Source object, this returns a Lexer for that source.
diff --git a/src/language/location.d.ts b/src/language/location.d.ts
index a41e82f41e..bb34fba5b0 100644
--- a/src/language/location.d.ts
+++ b/src/language/location.d.ts
@@ -1,4 +1,4 @@
-import { Source } from './source';
+import type { Source } from './source';
 
 /**
  * Represents a location in a Source.
diff --git a/src/language/parser.d.ts b/src/language/parser.d.ts
index 5790cc3802..4e7bd207fb 100644
--- a/src/language/parser.d.ts
+++ b/src/language/parser.d.ts
@@ -1,7 +1,7 @@
-import { Maybe } from '../jsutils/Maybe';
-import { GraphQLError } from '../error/GraphQLError';
+import type { Maybe } from '../jsutils/Maybe';
+import type { GraphQLError } from '../error/GraphQLError';
 
-import {
+import type {
   Token,
   NameNode,
   VariableNode,
@@ -53,9 +53,9 @@ import {
   EnumTypeExtensionNode,
   InputObjectTypeExtensionNode,
 } from './ast';
-import { TokenKindEnum } from './tokenKind';
-import { Source } from './source';
-import { Lexer } from './lexer';
+import type { TokenKindEnum } from './tokenKind';
+import type { Source } from './source';
+import type { Lexer } from './lexer';
 /**
  * Configuration options to control parser behavior
  */
diff --git a/src/language/predicates.d.ts b/src/language/predicates.d.ts
index 3111607635..20e117844d 100644
--- a/src/language/predicates.d.ts
+++ b/src/language/predicates.d.ts
@@ -1,4 +1,4 @@
-import {
+import type {
   ASTNode,
   DefinitionNode,
   ExecutableDefinitionNode,
diff --git a/src/language/printLocation.d.ts b/src/language/printLocation.d.ts
index 7d0c34705b..eb49378c10 100644
--- a/src/language/printLocation.d.ts
+++ b/src/language/printLocation.d.ts
@@ -1,6 +1,6 @@
-import { Location } from './ast';
-import { Source } from './source';
-import { SourceLocation } from './location';
+import type { Location } from './ast';
+import type { Source } from './source';
+import type { SourceLocation } from './location';
 
 /**
  * Render a helpful description of the location in the GraphQL Source document.
diff --git a/src/language/printer.d.ts b/src/language/printer.d.ts
index 9329b45956..7af106080f 100644
--- a/src/language/printer.d.ts
+++ b/src/language/printer.d.ts
@@ -1,4 +1,4 @@
-import { ASTNode } from './ast';
+import type { ASTNode } from './ast';
 
 /**
  * Converts an AST into a string, using one set of reasonable
diff --git a/src/language/visitor.d.ts b/src/language/visitor.d.ts
index 939a0c4145..134a08d716 100644
--- a/src/language/visitor.d.ts
+++ b/src/language/visitor.d.ts
@@ -1,6 +1,6 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { ASTNode, ASTKindToNode } from './ast';
+import type { ASTNode, ASTKindToNode } from './ast';
 
 /**
  * A visitor is provided to visit, it contains the collection of
diff --git a/src/subscription/mapAsyncIterator.d.ts b/src/subscription/mapAsyncIterator.d.ts
index fb031ba3bf..79ffd8e940 100644
--- a/src/subscription/mapAsyncIterator.d.ts
+++ b/src/subscription/mapAsyncIterator.d.ts
@@ -1,4 +1,4 @@
-import { PromiseOrValue } from '../jsutils/PromiseOrValue';
+import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
 
 /**
  * Given an AsyncIterable and a callback function, return an AsyncIterator
diff --git a/src/subscription/subscribe.d.ts b/src/subscription/subscribe.d.ts
index 46c00d3e92..9dd4fd1ba6 100644
--- a/src/subscription/subscribe.d.ts
+++ b/src/subscription/subscribe.d.ts
@@ -1,9 +1,9 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { DocumentNode } from '../language/ast';
-import { ExecutionResult } from '../execution/execute';
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLFieldResolver } from '../type/definition';
+import type { DocumentNode } from '../language/ast';
+import type { ExecutionResult } from '../execution/execute';
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLFieldResolver } from '../type/definition';
 
 export interface SubscriptionArgs {
   schema: GraphQLSchema;
diff --git a/src/type/definition.d.ts b/src/type/definition.d.ts
index 50e9dd53f3..67aae98abc 100644
--- a/src/type/definition.d.ts
+++ b/src/type/definition.d.ts
@@ -1,13 +1,10 @@
-// FIXME
-/* eslint-disable import/no-cycle */
+import type { Maybe } from '../jsutils/Maybe';
 
-import { Maybe } from '../jsutils/Maybe';
+import type { PromiseOrValue } from '../jsutils/PromiseOrValue';
+import type { Path } from '../jsutils/Path';
+import type { ObjMap } from '../jsutils/ObjMap';
 
-import { PromiseOrValue } from '../jsutils/PromiseOrValue';
-import { Path } from '../jsutils/Path';
-import { ObjMap } from '../jsutils/ObjMap';
-
-import {
+import type {
   ScalarTypeDefinitionNode,
   ObjectTypeDefinitionNode,
   FieldDefinitionNode,
@@ -29,7 +26,7 @@ import {
   InputObjectTypeExtensionNode,
 } from '../language/ast';
 
-import { GraphQLSchema } from './schema';
+import type { GraphQLSchema } from './schema';
 
 /**
  * These are all of the possible kinds of types.
diff --git a/src/type/directives.d.ts b/src/type/directives.d.ts
index 66415d879a..a704002181 100644
--- a/src/type/directives.d.ts
+++ b/src/type/directives.d.ts
@@ -1,12 +1,12 @@
-// FIXME
-/* eslint-disable import/no-cycle */
+import type { Maybe } from '../jsutils/Maybe';
 
-import { Maybe } from '../jsutils/Maybe';
+import type { DirectiveDefinitionNode } from '../language/ast';
+import type { DirectiveLocationEnum } from '../language/directiveLocation';
 
-import { DirectiveDefinitionNode } from '../language/ast';
-import { DirectiveLocationEnum } from '../language/directiveLocation';
-
-import { GraphQLFieldConfigArgumentMap, GraphQLArgument } from './definition';
+import type {
+  GraphQLFieldConfigArgumentMap,
+  GraphQLArgument,
+} from './definition';
 
 /**
  * Test if the given value is a GraphQL directive.
diff --git a/src/type/introspection.d.ts b/src/type/introspection.d.ts
index 54c55e1d9e..a8e79e1896 100644
--- a/src/type/introspection.d.ts
+++ b/src/type/introspection.d.ts
@@ -1,4 +1,4 @@
-import {
+import type {
   GraphQLObjectType,
   GraphQLField,
   GraphQLEnumType,
diff --git a/src/type/scalars.d.ts b/src/type/scalars.d.ts
index 71593d10c2..c5a26af612 100644
--- a/src/type/scalars.d.ts
+++ b/src/type/scalars.d.ts
@@ -1,4 +1,4 @@
-import { GraphQLScalarType, GraphQLNamedType } from './definition';
+import type { GraphQLScalarType, GraphQLNamedType } from './definition';
 
 export const GraphQLInt: GraphQLScalarType;
 export const GraphQLFloat: GraphQLScalarType;
diff --git a/src/type/schema.d.ts b/src/type/schema.d.ts
index e0d7441dba..dc7c9f7d2b 100644
--- a/src/type/schema.d.ts
+++ b/src/type/schema.d.ts
@@ -1,13 +1,13 @@
-// FIXME
-/* eslint-disable import/no-cycle */
+import type { Maybe } from '../jsutils/Maybe';
+import type { ObjMap } from '../jsutils/ObjMap';
 
-import { Maybe } from '../jsutils/Maybe';
-import { ObjMap } from '../jsutils/ObjMap';
+import type {
+  SchemaDefinitionNode,
+  SchemaExtensionNode,
+} from '../language/ast';
 
-import { SchemaDefinitionNode, SchemaExtensionNode } from '../language/ast';
-
-import { GraphQLDirective } from './directives';
-import {
+import type { GraphQLDirective } from './directives';
+import type {
   GraphQLNamedType,
   GraphQLAbstractType,
   GraphQLObjectType,
diff --git a/src/type/validate.d.ts b/src/type/validate.d.ts
index 98400a2363..9c41f702c5 100644
--- a/src/type/validate.d.ts
+++ b/src/type/validate.d.ts
@@ -1,6 +1,6 @@
-import { GraphQLError } from '../error/GraphQLError';
+import type { GraphQLError } from '../error/GraphQLError';
 
-import { GraphQLSchema } from './schema';
+import type { GraphQLSchema } from './schema';
 
 /**
  * Implements the "Type Validation" sub-sections of the specification's
diff --git a/src/utilities/TypeInfo.d.ts b/src/utilities/TypeInfo.d.ts
index cb73737390..cd1e339546 100644
--- a/src/utilities/TypeInfo.d.ts
+++ b/src/utilities/TypeInfo.d.ts
@@ -1,10 +1,10 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { ASTVisitor } from '../language/visitor';
-import { ASTNode, FieldNode } from '../language/ast';
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLDirective } from '../type/directives';
-import {
+import type { ASTVisitor } from '../language/visitor';
+import type { ASTNode, FieldNode } from '../language/ast';
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLDirective } from '../type/directives';
+import type {
   GraphQLType,
   GraphQLInputType,
   GraphQLOutputType,
diff --git a/src/utilities/assertValidName.d.ts b/src/utilities/assertValidName.d.ts
index 5a1011e706..b4a7d4c80f 100644
--- a/src/utilities/assertValidName.d.ts
+++ b/src/utilities/assertValidName.d.ts
@@ -1,4 +1,4 @@
-import { GraphQLError } from '../error/GraphQLError';
+import type { GraphQLError } from '../error/GraphQLError';
 
 /**
  * Upholds the spec rules about naming.
diff --git a/src/utilities/astFromValue.d.ts b/src/utilities/astFromValue.d.ts
index 5750a50ef1..0cd68b5472 100644
--- a/src/utilities/astFromValue.d.ts
+++ b/src/utilities/astFromValue.d.ts
@@ -1,7 +1,7 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { ValueNode } from '../language/ast';
-import { GraphQLInputType } from '../type/definition';
+import type { ValueNode } from '../language/ast';
+import type { GraphQLInputType } from '../type/definition';
 
 /**
  * Produces a GraphQL Value AST given a JavaScript value.
diff --git a/src/utilities/buildASTSchema.d.ts b/src/utilities/buildASTSchema.d.ts
index 80592e0375..037fceaae0 100644
--- a/src/utilities/buildASTSchema.d.ts
+++ b/src/utilities/buildASTSchema.d.ts
@@ -1,7 +1,10 @@
-import { DocumentNode } from '../language/ast';
-import { Source } from '../language/source';
-import { GraphQLSchema, GraphQLSchemaValidationOptions } from '../type/schema';
-import { ParseOptions } from '../language/parser';
+import type { DocumentNode } from '../language/ast';
+import type { Source } from '../language/source';
+import type {
+  GraphQLSchema,
+  GraphQLSchemaValidationOptions,
+} from '../type/schema';
+import type { ParseOptions } from '../language/parser';
 
 export interface BuildSchemaOptions extends GraphQLSchemaValidationOptions {
   /**
diff --git a/src/utilities/buildClientSchema.d.ts b/src/utilities/buildClientSchema.d.ts
index a541cd307d..a3cdc4bb11 100644
--- a/src/utilities/buildClientSchema.d.ts
+++ b/src/utilities/buildClientSchema.d.ts
@@ -1,6 +1,9 @@
-import { GraphQLSchema, GraphQLSchemaValidationOptions } from '../type/schema';
+import type {
+  GraphQLSchema,
+  GraphQLSchemaValidationOptions,
+} from '../type/schema';
 
-import { IntrospectionQuery } from './getIntrospectionQuery';
+import type { IntrospectionQuery } from './getIntrospectionQuery';
 
 /**
  * Build a GraphQLSchema for use by client tools.
diff --git a/src/utilities/coerceInputValue.d.ts b/src/utilities/coerceInputValue.d.ts
index 78dafb257f..83c5333562 100644
--- a/src/utilities/coerceInputValue.d.ts
+++ b/src/utilities/coerceInputValue.d.ts
@@ -1,5 +1,5 @@
-import { GraphQLInputType } from '../type/definition';
-import { GraphQLError } from '../error/GraphQLError';
+import type { GraphQLInputType } from '../type/definition';
+import type { GraphQLError } from '../error/GraphQLError';
 
 type OnErrorCB = (
   path: ReadonlyArray<string | number>,
diff --git a/src/utilities/concatAST.d.ts b/src/utilities/concatAST.d.ts
index 03d441e1ca..57c98eacd0 100644
--- a/src/utilities/concatAST.d.ts
+++ b/src/utilities/concatAST.d.ts
@@ -1,4 +1,4 @@
-import { DocumentNode } from '../language/ast';
+import type { DocumentNode } from '../language/ast';
 
 /**
  * Provided a collection of ASTs, presumably each from different files,
diff --git a/src/utilities/extendSchema.d.ts b/src/utilities/extendSchema.d.ts
index dedd60572c..0bb68645ac 100644
--- a/src/utilities/extendSchema.d.ts
+++ b/src/utilities/extendSchema.d.ts
@@ -1,5 +1,5 @@
-import { DocumentNode } from '../language/ast';
-import {
+import type { DocumentNode } from '../language/ast';
+import type {
   GraphQLSchemaValidationOptions,
   GraphQLSchema,
   GraphQLSchemaNormalizedConfig,
diff --git a/src/utilities/findBreakingChanges.d.ts b/src/utilities/findBreakingChanges.d.ts
index df35805f17..eab35a3363 100644
--- a/src/utilities/findBreakingChanges.d.ts
+++ b/src/utilities/findBreakingChanges.d.ts
@@ -1,4 +1,4 @@
-import { GraphQLSchema } from '../type/schema';
+import type { GraphQLSchema } from '../type/schema';
 
 export const BreakingChangeType: {
   TYPE_REMOVED: 'TYPE_REMOVED';
diff --git a/src/utilities/getIntrospectionQuery.d.ts b/src/utilities/getIntrospectionQuery.d.ts
index ce805aa348..15707f62eb 100644
--- a/src/utilities/getIntrospectionQuery.d.ts
+++ b/src/utilities/getIntrospectionQuery.d.ts
@@ -1,6 +1,6 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { DirectiveLocationEnum } from '../language/directiveLocation';
+import type { DirectiveLocationEnum } from '../language/directiveLocation';
 
 export interface IntrospectionOptions {
   // Whether to include descriptions in the introspection result.
diff --git a/src/utilities/getOperationAST.d.ts b/src/utilities/getOperationAST.d.ts
index d17a9b495c..b3bf7c46ad 100644
--- a/src/utilities/getOperationAST.d.ts
+++ b/src/utilities/getOperationAST.d.ts
@@ -1,6 +1,6 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { DocumentNode, OperationDefinitionNode } from '../language/ast';
+import type { DocumentNode, OperationDefinitionNode } from '../language/ast';
 
 /**
  * Returns an operation AST given a document AST and optionally an operation
diff --git a/src/utilities/getOperationRootType.d.ts b/src/utilities/getOperationRootType.d.ts
index 5adc59c7af..d6754b912d 100644
--- a/src/utilities/getOperationRootType.d.ts
+++ b/src/utilities/getOperationRootType.d.ts
@@ -1,9 +1,9 @@
-import {
+import type {
   OperationDefinitionNode,
   OperationTypeDefinitionNode,
 } from '../language/ast';
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLObjectType } from '../type/definition';
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLObjectType } from '../type/definition';
 
 /**
  * Extracts the root type of the operation from the schema.
diff --git a/src/utilities/introspectionFromSchema.d.ts b/src/utilities/introspectionFromSchema.d.ts
index ed9abf16ef..dd73ba0aac 100644
--- a/src/utilities/introspectionFromSchema.d.ts
+++ b/src/utilities/introspectionFromSchema.d.ts
@@ -1,6 +1,6 @@
-import { GraphQLSchema } from '../type/schema';
+import type { GraphQLSchema } from '../type/schema';
 
-import {
+import type {
   IntrospectionQuery,
   IntrospectionOptions,
 } from './getIntrospectionQuery';
diff --git a/src/utilities/lexicographicSortSchema.d.ts b/src/utilities/lexicographicSortSchema.d.ts
index 7dfde701d7..b515e8b471 100644
--- a/src/utilities/lexicographicSortSchema.d.ts
+++ b/src/utilities/lexicographicSortSchema.d.ts
@@ -1,4 +1,4 @@
-import { GraphQLSchema } from '../type/schema';
+import type { GraphQLSchema } from '../type/schema';
 
 /**
  * Sort GraphQLSchema.
diff --git a/src/utilities/printSchema.d.ts b/src/utilities/printSchema.d.ts
index 57232961c2..c69f81e2dc 100644
--- a/src/utilities/printSchema.d.ts
+++ b/src/utilities/printSchema.d.ts
@@ -1,5 +1,5 @@
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLNamedType } from '../type/definition';
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLNamedType } from '../type/definition';
 
 export function printSchema(schema: GraphQLSchema): string;
 
diff --git a/src/utilities/separateOperations.d.ts b/src/utilities/separateOperations.d.ts
index 21552407d0..5e529f4948 100644
--- a/src/utilities/separateOperations.d.ts
+++ b/src/utilities/separateOperations.d.ts
@@ -1,5 +1,5 @@
-import { ObjMap } from '../jsutils/ObjMap';
-import { DocumentNode } from '../language/ast';
+import type { ObjMap } from '../jsutils/ObjMap';
+import type { DocumentNode } from '../language/ast';
 
 /**
  * separateOperations accepts a single AST document which may contain many
diff --git a/src/utilities/stripIgnoredCharacters.d.ts b/src/utilities/stripIgnoredCharacters.d.ts
index a131af02f5..6173bc74c1 100644
--- a/src/utilities/stripIgnoredCharacters.d.ts
+++ b/src/utilities/stripIgnoredCharacters.d.ts
@@ -1,4 +1,4 @@
-import { Source } from '../language/source';
+import type { Source } from '../language/source';
 
 /**
  * Strips characters that are not significant to the validity or execution
diff --git a/src/utilities/typeComparators.d.ts b/src/utilities/typeComparators.d.ts
index 7de3e00b68..3e1c22d8a0 100644
--- a/src/utilities/typeComparators.d.ts
+++ b/src/utilities/typeComparators.d.ts
@@ -1,5 +1,5 @@
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLType, GraphQLCompositeType } from '../type/definition';
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLType, GraphQLCompositeType } from '../type/definition';
 
 /**
  * Provided two types, return true if the types are equal (invariant).
diff --git a/src/utilities/typeFromAST.d.ts b/src/utilities/typeFromAST.d.ts
index cf32ac7cee..9afdcb7917 100644
--- a/src/utilities/typeFromAST.d.ts
+++ b/src/utilities/typeFromAST.d.ts
@@ -1,6 +1,10 @@
-import { NamedTypeNode, ListTypeNode, NonNullTypeNode } from '../language/ast';
-import { GraphQLSchema } from '../type/schema';
-import {
+import type {
+  NamedTypeNode,
+  ListTypeNode,
+  NonNullTypeNode,
+} from '../language/ast';
+import type { GraphQLSchema } from '../type/schema';
+import type {
   GraphQLNamedType,
   GraphQLList,
   GraphQLNonNull,
diff --git a/src/utilities/typedQueryDocumentNode.d.ts b/src/utilities/typedQueryDocumentNode.d.ts
index 82d74f1473..ea01006e25 100644
--- a/src/utilities/typedQueryDocumentNode.d.ts
+++ b/src/utilities/typedQueryDocumentNode.d.ts
@@ -1,4 +1,4 @@
-import { DocumentNode, ExecutableDefinitionNode } from '../language/ast';
+import type { DocumentNode, ExecutableDefinitionNode } from '../language/ast';
 
 /**
  * Wrapper type that contains DocumentNode and types that can be deduced from it.
diff --git a/src/utilities/valueFromAST.d.ts b/src/utilities/valueFromAST.d.ts
index 6ea38000e1..dca7a349af 100644
--- a/src/utilities/valueFromAST.d.ts
+++ b/src/utilities/valueFromAST.d.ts
@@ -1,8 +1,8 @@
-import { Maybe } from '../jsutils/Maybe';
-import { ObjMap } from '../jsutils/ObjMap';
+import type { Maybe } from '../jsutils/Maybe';
+import type { ObjMap } from '../jsutils/ObjMap';
 
-import { ValueNode } from '../language/ast';
-import { GraphQLInputType } from '../type/definition';
+import type { ValueNode } from '../language/ast';
+import type { GraphQLInputType } from '../type/definition';
 
 /**
  * Produces a JavaScript value given a GraphQL Value AST.
diff --git a/src/utilities/valueFromASTUntyped.d.ts b/src/utilities/valueFromASTUntyped.d.ts
index 495e279723..ef6d428cac 100644
--- a/src/utilities/valueFromASTUntyped.d.ts
+++ b/src/utilities/valueFromASTUntyped.d.ts
@@ -1,7 +1,7 @@
-import { Maybe } from '../jsutils/Maybe';
-import { ObjMap } from '../jsutils/ObjMap';
+import type { Maybe } from '../jsutils/Maybe';
+import type { ObjMap } from '../jsutils/ObjMap';
 
-import { ValueNode } from '../language/ast';
+import type { ValueNode } from '../language/ast';
 
 /**
  * Produces a JavaScript value given a GraphQL Value AST.
diff --git a/src/validation/ValidationContext.d.ts b/src/validation/ValidationContext.d.ts
index 0424c14da4..0801a92e78 100644
--- a/src/validation/ValidationContext.d.ts
+++ b/src/validation/ValidationContext.d.ts
@@ -1,8 +1,8 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { GraphQLError } from '../error/GraphQLError';
-import { ASTVisitor } from '../language/visitor';
-import {
+import type { GraphQLError } from '../error/GraphQLError';
+import type { ASTVisitor } from '../language/visitor';
+import type {
   DocumentNode,
   OperationDefinitionNode,
   VariableNode,
@@ -10,9 +10,9 @@ import {
   FragmentSpreadNode,
   FragmentDefinitionNode,
 } from '../language/ast';
-import { GraphQLSchema } from '../type/schema';
-import { GraphQLDirective } from '../type/directives';
-import {
+import type { GraphQLSchema } from '../type/schema';
+import type { GraphQLDirective } from '../type/directives';
+import type {
   GraphQLInputType,
   GraphQLOutputType,
   GraphQLCompositeType,
@@ -20,7 +20,7 @@ import {
   GraphQLArgument,
   GraphQLEnumValue,
 } from '../type/definition';
-import { TypeInfo } from '../utilities/TypeInfo';
+import type { TypeInfo } from '../utilities/TypeInfo';
 
 type NodeWithSelectionSet = OperationDefinitionNode | FragmentDefinitionNode;
 interface VariableUsage {
diff --git a/src/validation/rules/ExecutableDefinitionsRule.d.ts b/src/validation/rules/ExecutableDefinitionsRule.d.ts
index 9709256c48..09a7a4c51e 100644
--- a/src/validation/rules/ExecutableDefinitionsRule.d.ts
+++ b/src/validation/rules/ExecutableDefinitionsRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Executable definitions
diff --git a/src/validation/rules/FieldsOnCorrectTypeRule.d.ts b/src/validation/rules/FieldsOnCorrectTypeRule.d.ts
index 6091c6ce2e..85cbfe2e77 100644
--- a/src/validation/rules/FieldsOnCorrectTypeRule.d.ts
+++ b/src/validation/rules/FieldsOnCorrectTypeRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Fields on correct type
diff --git a/src/validation/rules/FragmentsOnCompositeTypesRule.d.ts b/src/validation/rules/FragmentsOnCompositeTypesRule.d.ts
index 70b9b140f4..22bd21ae6a 100644
--- a/src/validation/rules/FragmentsOnCompositeTypesRule.d.ts
+++ b/src/validation/rules/FragmentsOnCompositeTypesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Fragments on composite type
diff --git a/src/validation/rules/KnownArgumentNamesRule.d.ts b/src/validation/rules/KnownArgumentNamesRule.d.ts
index 8c0f828994..d96c2d3071 100644
--- a/src/validation/rules/KnownArgumentNamesRule.d.ts
+++ b/src/validation/rules/KnownArgumentNamesRule.d.ts
@@ -1,5 +1,8 @@
-import { ValidationContext, SDLValidationContext } from '../ValidationContext';
-import { ASTVisitor } from '../../language/visitor';
+import type {
+  ValidationContext,
+  SDLValidationContext,
+} from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
 
 /**
  * Known argument names
diff --git a/src/validation/rules/KnownDirectivesRule.d.ts b/src/validation/rules/KnownDirectivesRule.d.ts
index dcb6af6138..9d6f3862fb 100644
--- a/src/validation/rules/KnownDirectivesRule.d.ts
+++ b/src/validation/rules/KnownDirectivesRule.d.ts
@@ -1,5 +1,8 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext, SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type {
+  ValidationContext,
+  SDLValidationContext,
+} from '../ValidationContext';
 
 /**
  * Known directives
diff --git a/src/validation/rules/KnownFragmentNamesRule.d.ts b/src/validation/rules/KnownFragmentNamesRule.d.ts
index 7b594fd912..3dd7ca74c8 100644
--- a/src/validation/rules/KnownFragmentNamesRule.d.ts
+++ b/src/validation/rules/KnownFragmentNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Known fragment names
diff --git a/src/validation/rules/KnownTypeNamesRule.d.ts b/src/validation/rules/KnownTypeNamesRule.d.ts
index b7cd75d4a1..a033511c5e 100644
--- a/src/validation/rules/KnownTypeNamesRule.d.ts
+++ b/src/validation/rules/KnownTypeNamesRule.d.ts
@@ -1,5 +1,8 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext, SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type {
+  ValidationContext,
+  SDLValidationContext,
+} from '../ValidationContext';
 
 /**
  * Known type names
diff --git a/src/validation/rules/LoneAnonymousOperationRule.d.ts b/src/validation/rules/LoneAnonymousOperationRule.d.ts
index 1ac19ef4b7..a06eeb3eeb 100644
--- a/src/validation/rules/LoneAnonymousOperationRule.d.ts
+++ b/src/validation/rules/LoneAnonymousOperationRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Lone anonymous operation
diff --git a/src/validation/rules/LoneSchemaDefinitionRule.d.ts b/src/validation/rules/LoneSchemaDefinitionRule.d.ts
index 5075e74e9b..433113acc9 100644
--- a/src/validation/rules/LoneSchemaDefinitionRule.d.ts
+++ b/src/validation/rules/LoneSchemaDefinitionRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Lone Schema definition
diff --git a/src/validation/rules/NoFragmentCyclesRule.d.ts b/src/validation/rules/NoFragmentCyclesRule.d.ts
index 85b2b106ed..78b7f07a1b 100644
--- a/src/validation/rules/NoFragmentCyclesRule.d.ts
+++ b/src/validation/rules/NoFragmentCyclesRule.d.ts
@@ -1,4 +1,4 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 export function NoFragmentCyclesRule(context: ValidationContext): ASTVisitor;
diff --git a/src/validation/rules/NoUndefinedVariablesRule.d.ts b/src/validation/rules/NoUndefinedVariablesRule.d.ts
index d1a080655b..f8b374dcd0 100644
--- a/src/validation/rules/NoUndefinedVariablesRule.d.ts
+++ b/src/validation/rules/NoUndefinedVariablesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * No undefined variables
diff --git a/src/validation/rules/NoUnusedFragmentsRule.d.ts b/src/validation/rules/NoUnusedFragmentsRule.d.ts
index 8435bab17a..360beb53f2 100644
--- a/src/validation/rules/NoUnusedFragmentsRule.d.ts
+++ b/src/validation/rules/NoUnusedFragmentsRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * No unused fragments
diff --git a/src/validation/rules/NoUnusedVariablesRule.d.ts b/src/validation/rules/NoUnusedVariablesRule.d.ts
index 351449d8b9..f108908cee 100644
--- a/src/validation/rules/NoUnusedVariablesRule.d.ts
+++ b/src/validation/rules/NoUnusedVariablesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * No unused variables
diff --git a/src/validation/rules/OverlappingFieldsCanBeMergedRule.d.ts b/src/validation/rules/OverlappingFieldsCanBeMergedRule.d.ts
index c1671c265a..c86ed73f7f 100644
--- a/src/validation/rules/OverlappingFieldsCanBeMergedRule.d.ts
+++ b/src/validation/rules/OverlappingFieldsCanBeMergedRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Overlapping fields can be merged
diff --git a/src/validation/rules/PossibleFragmentSpreadsRule.d.ts b/src/validation/rules/PossibleFragmentSpreadsRule.d.ts
index 36f551df5d..b3149c2936 100644
--- a/src/validation/rules/PossibleFragmentSpreadsRule.d.ts
+++ b/src/validation/rules/PossibleFragmentSpreadsRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Possible fragment spread
diff --git a/src/validation/rules/PossibleTypeExtensionsRule.d.ts b/src/validation/rules/PossibleTypeExtensionsRule.d.ts
index 8337dc5bd7..13addca66d 100644
--- a/src/validation/rules/PossibleTypeExtensionsRule.d.ts
+++ b/src/validation/rules/PossibleTypeExtensionsRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Possible type extension
diff --git a/src/validation/rules/ProvidedRequiredArgumentsRule.d.ts b/src/validation/rules/ProvidedRequiredArgumentsRule.d.ts
index 116069ceac..9482f431f3 100644
--- a/src/validation/rules/ProvidedRequiredArgumentsRule.d.ts
+++ b/src/validation/rules/ProvidedRequiredArgumentsRule.d.ts
@@ -1,5 +1,8 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext, SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type {
+  ValidationContext,
+  SDLValidationContext,
+} from '../ValidationContext';
 
 /**
  * Provided required arguments
diff --git a/src/validation/rules/ScalarLeafsRule.d.ts b/src/validation/rules/ScalarLeafsRule.d.ts
index ae956efc8a..2c5ff14930 100644
--- a/src/validation/rules/ScalarLeafsRule.d.ts
+++ b/src/validation/rules/ScalarLeafsRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Scalar leafs
diff --git a/src/validation/rules/SingleFieldSubscriptionsRule.d.ts b/src/validation/rules/SingleFieldSubscriptionsRule.d.ts
index d56c4fdd1d..ab21bd36dc 100644
--- a/src/validation/rules/SingleFieldSubscriptionsRule.d.ts
+++ b/src/validation/rules/SingleFieldSubscriptionsRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Subscriptions must only include one field.
diff --git a/src/validation/rules/UniqueArgumentNamesRule.d.ts b/src/validation/rules/UniqueArgumentNamesRule.d.ts
index 1d0d4f41b3..cfde6d177c 100644
--- a/src/validation/rules/UniqueArgumentNamesRule.d.ts
+++ b/src/validation/rules/UniqueArgumentNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Unique argument names
diff --git a/src/validation/rules/UniqueDirectiveNamesRule.d.ts b/src/validation/rules/UniqueDirectiveNamesRule.d.ts
index a4dd841903..f8d2710f70 100644
--- a/src/validation/rules/UniqueDirectiveNamesRule.d.ts
+++ b/src/validation/rules/UniqueDirectiveNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Unique directive names
diff --git a/src/validation/rules/UniqueDirectivesPerLocationRule.d.ts b/src/validation/rules/UniqueDirectivesPerLocationRule.d.ts
index d059446557..05601a751c 100644
--- a/src/validation/rules/UniqueDirectivesPerLocationRule.d.ts
+++ b/src/validation/rules/UniqueDirectivesPerLocationRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Unique directive names per location
diff --git a/src/validation/rules/UniqueEnumValueNamesRule.d.ts b/src/validation/rules/UniqueEnumValueNamesRule.d.ts
index 9c5ff50a90..aa6b495dfa 100644
--- a/src/validation/rules/UniqueEnumValueNamesRule.d.ts
+++ b/src/validation/rules/UniqueEnumValueNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Unique enum value names
diff --git a/src/validation/rules/UniqueFieldDefinitionNamesRule.d.ts b/src/validation/rules/UniqueFieldDefinitionNamesRule.d.ts
index 6f356ed98d..5f21207856 100644
--- a/src/validation/rules/UniqueFieldDefinitionNamesRule.d.ts
+++ b/src/validation/rules/UniqueFieldDefinitionNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Unique field definition names
diff --git a/src/validation/rules/UniqueFragmentNamesRule.d.ts b/src/validation/rules/UniqueFragmentNamesRule.d.ts
index 6154158980..8c59101b76 100644
--- a/src/validation/rules/UniqueFragmentNamesRule.d.ts
+++ b/src/validation/rules/UniqueFragmentNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Unique fragment names
diff --git a/src/validation/rules/UniqueInputFieldNamesRule.d.ts b/src/validation/rules/UniqueInputFieldNamesRule.d.ts
index c66d65f56c..393bf04ba5 100644
--- a/src/validation/rules/UniqueInputFieldNamesRule.d.ts
+++ b/src/validation/rules/UniqueInputFieldNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Unique input field names
diff --git a/src/validation/rules/UniqueOperationNamesRule.d.ts b/src/validation/rules/UniqueOperationNamesRule.d.ts
index aa2d06ad36..b583e33564 100644
--- a/src/validation/rules/UniqueOperationNamesRule.d.ts
+++ b/src/validation/rules/UniqueOperationNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Unique operation names
diff --git a/src/validation/rules/UniqueOperationTypesRule.d.ts b/src/validation/rules/UniqueOperationTypesRule.d.ts
index a0d6441d52..ac5eba34bb 100644
--- a/src/validation/rules/UniqueOperationTypesRule.d.ts
+++ b/src/validation/rules/UniqueOperationTypesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Unique operation types
diff --git a/src/validation/rules/UniqueTypeNamesRule.d.ts b/src/validation/rules/UniqueTypeNamesRule.d.ts
index e2b37594b4..2f698b1a7a 100644
--- a/src/validation/rules/UniqueTypeNamesRule.d.ts
+++ b/src/validation/rules/UniqueTypeNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { SDLValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { SDLValidationContext } from '../ValidationContext';
 
 /**
  * Unique type names
diff --git a/src/validation/rules/UniqueVariableNamesRule.d.ts b/src/validation/rules/UniqueVariableNamesRule.d.ts
index 6f15764a34..267744d9c8 100644
--- a/src/validation/rules/UniqueVariableNamesRule.d.ts
+++ b/src/validation/rules/UniqueVariableNamesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ASTValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ASTValidationContext } from '../ValidationContext';
 
 /**
  * Unique variable names
diff --git a/src/validation/rules/ValuesOfCorrectTypeRule.d.ts b/src/validation/rules/ValuesOfCorrectTypeRule.d.ts
index 98ff7a7438..ab828ce1a7 100644
--- a/src/validation/rules/ValuesOfCorrectTypeRule.d.ts
+++ b/src/validation/rules/ValuesOfCorrectTypeRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Value literals of correct type
diff --git a/src/validation/rules/VariablesAreInputTypesRule.d.ts b/src/validation/rules/VariablesAreInputTypesRule.d.ts
index c82229c79e..87918089ca 100644
--- a/src/validation/rules/VariablesAreInputTypesRule.d.ts
+++ b/src/validation/rules/VariablesAreInputTypesRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Variables are input types
diff --git a/src/validation/rules/VariablesInAllowedPositionRule.d.ts b/src/validation/rules/VariablesInAllowedPositionRule.d.ts
index 6ee57371c9..38bf47b70b 100644
--- a/src/validation/rules/VariablesInAllowedPositionRule.d.ts
+++ b/src/validation/rules/VariablesInAllowedPositionRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../language/visitor';
-import { ValidationContext } from '../ValidationContext';
+import type { ASTVisitor } from '../../language/visitor';
+import type { ValidationContext } from '../ValidationContext';
 
 /**
  * Variables passed to field arguments conform to type
diff --git a/src/validation/rules/custom/NoDeprecatedCustomRule.d.ts b/src/validation/rules/custom/NoDeprecatedCustomRule.d.ts
index d376cf8572..46339ea55c 100644
--- a/src/validation/rules/custom/NoDeprecatedCustomRule.d.ts
+++ b/src/validation/rules/custom/NoDeprecatedCustomRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../../language/visitor';
-import { ValidationContext } from '../../ValidationContext';
+import type { ASTVisitor } from '../../../language/visitor';
+import type { ValidationContext } from '../../ValidationContext';
 
 /**
  * No deprecated
diff --git a/src/validation/rules/custom/NoSchemaIntrospectionCustomRule.d.ts b/src/validation/rules/custom/NoSchemaIntrospectionCustomRule.d.ts
index 3677fa1c73..966405b694 100644
--- a/src/validation/rules/custom/NoSchemaIntrospectionCustomRule.d.ts
+++ b/src/validation/rules/custom/NoSchemaIntrospectionCustomRule.d.ts
@@ -1,5 +1,5 @@
-import { ASTVisitor } from '../../../language/visitor';
-import { ValidationContext } from '../../ValidationContext';
+import type { ASTVisitor } from '../../../language/visitor';
+import type { ValidationContext } from '../../ValidationContext';
 
 /**
  * Prohibit introspection queries
diff --git a/src/validation/specifiedRules.d.ts b/src/validation/specifiedRules.d.ts
index ffb5570894..9fa2408b6f 100644
--- a/src/validation/specifiedRules.d.ts
+++ b/src/validation/specifiedRules.d.ts
@@ -1,4 +1,4 @@
-import { ValidationRule, SDLValidationRule } from './ValidationContext';
+import type { ValidationRule, SDLValidationRule } from './ValidationContext';
 
 /**
  * This set includes all validation rules defined by the GraphQL spec.
diff --git a/src/validation/validate.d.ts b/src/validation/validate.d.ts
index 254706ae2e..53cac8e288 100644
--- a/src/validation/validate.d.ts
+++ b/src/validation/validate.d.ts
@@ -1,14 +1,14 @@
-import { Maybe } from '../jsutils/Maybe';
+import type { Maybe } from '../jsutils/Maybe';
 
-import { GraphQLError } from '../error/GraphQLError';
+import type { GraphQLError } from '../error/GraphQLError';
 
-import { DocumentNode } from '../language/ast';
+import type { DocumentNode } from '../language/ast';
 
-import { GraphQLSchema } from '../type/schema';
+import type { GraphQLSchema } from '../type/schema';
 
-import { TypeInfo } from '../utilities/TypeInfo';
+import type { TypeInfo } from '../utilities/TypeInfo';
 
-import { ValidationRule, SDLValidationRule } from './ValidationContext';
+import type { ValidationRule, SDLValidationRule } from './ValidationContext';
 
 /**
  * Implements the "Validation" section of the spec.