diff --git a/pkg/mac/build-dependencies.sh b/pkg/mac/build-dependencies.sh
index 84f48dc..c85b186 100755
--- a/pkg/mac/build-dependencies.sh
+++ b/pkg/mac/build-dependencies.sh
@@ -194,7 +194,9 @@ if [ ! -f curl-${CURL_VERSION}/.done ]; then
     CURL_VERSION_=${CURL_VERSION//./_}
     download_dependency $ROOT_DIR/dependencies.yaml curl
     pushd curl-${CURL_VERSION}
-      CFLAGS="-fPIC -arch arm64 -arch x86_64 -mmacosx-version-min=${MACOSX_DEPLOYMENT_TARGET}" \
+      # Force the compiler to find the OpenSSL headers instead of the headers in the system path like /usr/local/include/openssl.
+      cp -rf $PREFIX/include/openssl include/
+      CFLAGS="-I$PREFIX/include -fPIC -arch arm64 -arch x86_64 -mmacosx-version-min=${MACOSX_DEPLOYMENT_TARGET}" \
             ./configure --with-ssl=$PREFIX \
               --without-nghttp2 \
               --without-libidn2 \
diff --git a/pkg/mac/build-pulsar-cpp.sh b/pkg/mac/build-pulsar-cpp.sh
index a6849e2..51f1ef3 100755
--- a/pkg/mac/build-pulsar-cpp.sh
+++ b/pkg/mac/build-pulsar-cpp.sh
@@ -45,12 +45,14 @@ if [ ! -f apache-pulsar-client-cpp-${PULSAR_CPP_VERSION}/.done ]; then
       ARCHS='arm64;x86_64'
 
       cmake . \
+              -DCMAKE_CXX_STANDARD=11 \
               -DCMAKE_OSX_ARCHITECTURES=${ARCHS} \
               -DCMAKE_OSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET} \
               -DCMAKE_INSTALL_PREFIX=$PREFIX \
               -DCMAKE_BUILD_TYPE=Release \
               -DCMAKE_PREFIX_PATH=${DEPS_PREFIX} \
               -DCMAKE_CXX_FLAGS=-I${DEPS_PREFIX}/include \
+              -DOPENSSL_ROOT_DIR=${DEPS_PREFIX} \
               -DLINK_STATIC=OFF \
               -DBUILD_TESTS=OFF \
               -DBUILD_WIRESHARK=OFF \