diff --git a/test/test-lib-nodejs.sh b/test/test-lib-nodejs.sh
index d82815ed..fc08e16e 100644
--- a/test/test-lib-nodejs.sh
+++ b/test/test-lib-nodejs.sh
@@ -420,6 +420,15 @@ function test_client_cloudevents() {
   test_running_client_js cloudevents
 }
 function test_client_fastify() {
+  if [[ "${VERSION}" == *"minimal"* ]]; then
+    VERSION=$(echo "${VERSION}" | cut -d "-" -f 1)
+  fi
+  if [[ "$VERSION" == "18" ]]; then
+    if [ "$OS" == "rhel8" ] || [ "$OS" == "rhel9" ]; then
+      echo "Fastify is not supported in $VERSION and rhel8 and rhel9"
+      return
+    fi
+  fi
   echo "Running fastify client test"
   test_running_client_js fastify
 }