diff --git a/renovate.json b/renovate.json
index 40aa29e..cd35996 100644
--- a/renovate.json
+++ b/renovate.json
@@ -27,9 +27,9 @@
         "/^packages/openclaw-image/default\\.nix$/"
       ],
       "matchStrings": [
-        "  # renovate: datasource=(?<datasource>[^\\s]+) depName=(?<depName>[^\\s]+)\\n  openclawImageTag = \"(?<currentValue>[^\"]+)\";\\n  openclawImageDigest = \"sha256:(?<currentDigest>[^\"]+)\";"
+        "  # renovate: datasource=(?<datasource>[^\\s]+) depName=(?<depName>[^\\s]+)\\n  openclawImageTag = \"(?<currentValue>[^\"]+)\";\\n  openclawImageDigest = \"(?<currentDigest>[^\"]+)\";"
       ],
-      "autoReplaceStringTemplate": "  # renovate: datasource={{{datasource}}} depName={{{depName}}}\n  openclawImageTag = \"{{{newValue}}}\";\n  openclawImageDigest = \"sha256:{{{newDigest}}}\";"
+      "autoReplaceStringTemplate": "  # renovate: datasource={{{datasource}}} depName={{{depName}}}\n  openclawImageTag = \"{{{newValue}}}\";\n  openclawImageDigest = \"{{{newDigest}}}\";"
     }
   ],
   "packageRules": [
@@ -90,6 +90,16 @@
       "matchPackageNames": [
         "/google-cookie-retrieval/"
       ]
+    },
+    {
+      "description": "Group all openclaw Docker image updates into one PR",
+      "matchManagers": [
+        "regex"
+      ],
+      "matchPackageNames": [
+        "ghcr.io/openclaw/openclaw"
+      ],
+      "groupName": "openclaw"
     }
   ]
 }