diff --git a/parameter1.yaml b/parameter1.yaml
index 7ad67e38f..77cf8d3b0 100644
--- a/parameter1.yaml
+++ b/parameter1.yaml
@@ -3,7 +3,7 @@ parameters:
   - name: JDKVersion
     displayName: parameters for jdkversiions
     type: string
-    default: 1.17
+    default: '1.17'
       
  
 steps: