diff --git a/package.json b/package.json
index a13d667..5ba8f57 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
   "dependencies": {
     "body-parser": "^1.18.3",
     "express": "^4.16.4",
-    "express-session": "^1.15.6",
+    "express-session": "^1.17.3",
     "simple-oauth2": "^2.2.1"
   }
 }