diff --git a/renovate.json b/renovate.json
index 326a071..a38edca 100644
--- a/renovate.json
+++ b/renovate.json
@@ -3,13 +3,12 @@
   "gitlabci": {
     "enabled": true
   },
-  "regexManagers": [
+  "customManagers": [
     {
+      "customType": "regex",
       "description": "Track Tini version from ENV-based ADD download URL",
-      "fileMatch": ["^Dockerfile$"],
-      "matchStrings": [
-        "TINI_VERSION\\s+\"(?<currentValue>[^\"]+)\""
-      ],
+      "managerFilePatterns": ["/^Dockerfile$/"],
+      "matchStrings": ["TINI_VERSION\\s+\"(?<currentValue>[^\"]+)\""],
       "depNameTemplate": "krallin/tini",
       "datasourceTemplate": "github-releases",
       "versioningTemplate": "semver"