diff --git a/helm/index.yaml b/helm/index.yaml
index ce80eb9da..986eae303 100644
--- a/helm/index.yaml
+++ b/helm/index.yaml
@@ -1,6 +1,15 @@
 apiVersion: v1
 entries:
   seaweedfs:
+  - apiVersion: v1
+    appVersion: "3.91"
+    created: "2025-06-16T03:44:10.469586515Z"
+    description: SeaweedFS
+    digest: 929aecfb33ec62c3dccdd64c06cc469cfdaeef95db6df0bd25becd9ac8f4543e
+    name: seaweedfs
+    urls:
+    - https://seaweedfs.github.io/seaweedfs/helm/seaweedfs-4.0.391.tgz
+    version: 4.0.391
   - apiVersion: v1
     appVersion: "3.90"
     created: "2025-06-16T03:40:28.979860497Z"
@@ -451,4 +460,4 @@ entries:
     urls:
     - https://seaweedfs.github.io/seaweedfs/helm/seaweedfs-3.42.tgz
     version: "3.42"
-generated: "2025-06-16T03:40:28.976635334Z"
+generated: "2025-06-16T03:44:10.466728698Z"
diff --git a/helm/seaweedfs-4.0.391.tgz b/helm/seaweedfs-4.0.391.tgz
new file mode 100644
index 000000000..c896c09f7
Binary files /dev/null and b/helm/seaweedfs-4.0.391.tgz differ