diff --git a/tandoor-system/tandoor.yaml b/tandoor-system/tandoor.yaml
index 3ba7964..fb442f9 100644
--- a/tandoor-system/tandoor.yaml
+++ b/tandoor-system/tandoor.yaml
@@ -202,7 +202,7 @@ metadata:
   labels:
     app.kubernetes.io/instance: tandoor
     app.kubernetes.io/name: tandoor
-    app.kubernetes.io/version: 2.5
+    app.kubernetes.io/version: "2.5"
   name: tandoor
   namespace: tandoor-system
 spec: