diff --git a/renovate.json b/renovate.json
index c66db67..413dd2d 100644
--- a/renovate.json
+++ b/renovate.json
@@ -11,11 +11,18 @@
   ],
   "packageRules": [
     {
-      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "matchUpdateTypes": [
+        "minor",
+        "patch",
+        "pin",
+        "digest"
+      ],
       "automerge": true
     },
     {
-      "matchDepTypes": ["devDependencies"],
+      "matchDepTypes": [
+        "devDependencies"
+      ],
       "automerge": true
     }
   ],
@@ -23,7 +30,10 @@
     {
       "customType": "regex",
       "description": "Update _VERSION variables in Dockerfiles",
-      "fileMatch": ["(^|/|\\.)Dockerfile$", "(^|/)Dockerfile\\.[^/]*$"],
+      "managerFilePatterns": [
+        "/(^|/|\\.)Dockerfile$/",
+        "/(^|/)Dockerfile\\.[^/]*$/"
+      ],
       "matchStrings": [
         "# renovate: datasource=(?<datasource>[a-z-]+?)(?: depName=(?<depName>.+?))? packageName=(?<packageName>.+?)(?: versioning=(?<versioning>[a-z-]+?))?\\s(?:ENV|ARG) .+?_VERSION=(?<currentValue>.+?)\\s"
       ]