diff --git a/manifests/charts/htnn-controller/README.md b/manifests/charts/htnn-controller/README.md
index 800f9df2..ffa716d1 100644
--- a/manifests/charts/htnn-controller/README.md
+++ b/manifests/charts/htnn-controller/README.md
@@ -100,7 +100,7 @@ helm uninstall htnn-controller -n istio-system
 | global.remotePilotAddress | string | `""` |  |
 | global.sds.token.aud | string | `"istio-ca"` |  |
 | global.sts.servicePort | int | `0` |  |
-| global.tag | string | `"v0.3.0"` |  |
+| global.tag | string | `"0.3.0"` |  |
 | istio_cni.chained | bool | `true` |  |
 | istio_cni.provider | string | `"default"` |  |
 | istiodRemote.injectionCABundle | string | `""` |  |
diff --git a/manifests/charts/htnn-controller/values.schema.json b/manifests/charts/htnn-controller/values.schema.json
index 74f8dfb0..abdf8cdf 100644
--- a/manifests/charts/htnn-controller/values.schema.json
+++ b/manifests/charts/htnn-controller/values.schema.json
@@ -532,7 +532,7 @@
           ]
         },
         "tag": {
-          "default": "v0.3.0",
+          "default": "0.3.0",
           "title": "tag",
           "type": "string"
         }
diff --git a/manifests/charts/htnn-controller/values.yaml b/manifests/charts/htnn-controller/values.yaml
index 5f347dae..c3bae889 100644
--- a/manifests/charts/htnn-controller/values.yaml
+++ b/manifests/charts/htnn-controller/values.yaml
@@ -239,7 +239,7 @@ global:
 
   # Default hub for HTNN images.
   hub: ghcr.io/mosn
-  tag: v0.3.0
+  tag: 0.3.0
 
   # Specify image pull policy if default behavior isn't desired.
   # Default behavior: latest images will be Always else IfNotPresent.