diff --git a/packages/openclaw-image/default.nix b/packages/openclaw-image/default.nix
index 77fb7d0..a7f8bbf 100644
--- a/packages/openclaw-image/default.nix
+++ b/packages/openclaw-image/default.nix
@@ -4,8 +4,7 @@
 }:
 
 let
-  # Pin the upstream openclaw image version
-  # Updated by Renovate when new versions appear in flake.lock
+  # renovate: datasource=docker depName=ghcr.io/openclaw/openclaw
   openclawImageTag = "2026.4.14";
   openclawImageDigest = "sha256:7ea070b04d1e70811fe8ba15feaad5890b1646021b24e00f4795bd4587a594ed";
 
diff --git a/renovate.json b/renovate.json
index 7ee432a..0c25930 100644
--- a/renovate.json
+++ b/renovate.json
@@ -19,6 +19,19 @@
   "dependencyDashboard": true,
   "dependencyDashboardAutoclose": false,
   "dependencyDashboardTitle": "NixOS Configs Dependency Dashboard",
+  "customManagers": [
+    {
+      "customType": "regex",
+      "description": "Update openclaw Docker image tag and digest in Nix package",
+      "fileMatch": [
+        "^packages/openclaw-image/default\\.nix$"
+      ],
+      "matchStrings": [
+        "  # renovate: datasource=(?<datasource>[^\\s]+) depName=(?<depName>[^\\s]+)\\n  openclawImageTag = \"(?<currentValue>[^\"]+)\";\\n  openclawImageDigest = \"sha256:(?<currentDigest>[^\"]+)\";"
+      ],
+      "autoReplaceStringTemplate": "  # renovate: datasource={{{datasource}}} depName={{{depName}}}\n  openclawImageTag = \"{{{newValue}}}\";\n  openclawImageDigest = \"{{{newDigest}}}\";"
+    }
+  ],
   "packageRules": [
     {
       "description": "Group all GitHub Actions updates",