diff --git a/renovate.json b/renovate.json
index 0c25930..23decbd 100644
--- a/renovate.json
+++ b/renovate.json
@@ -23,8 +23,8 @@
     {
       "customType": "regex",
       "description": "Update openclaw Docker image tag and digest in Nix package",
-      "fileMatch": [
-        "^packages/openclaw-image/default\\.nix$"
+      "managerFilePatterns": [
+        "/^packages/openclaw-image/default\\.nix$/"
       ],
       "matchStrings": [
         "  # renovate: datasource=(?<datasource>[^\\s]+) depName=(?<depName>[^\\s]+)\\n  openclawImageTag = \"(?<currentValue>[^\"]+)\";\\n  openclawImageDigest = \"sha256:(?<currentDigest>[^\"]+)\";"