diff --git a/.github/renovate.json b/.github/renovate.json
index 295dd1a0..ed625e10 100644
--- a/.github/renovate.json
+++ b/.github/renovate.json
@@ -5,8 +5,9 @@
   "labels": ["dependencies", "no-stale"],
   "commitMessagePrefix": "⬆️",
   "commitMessageTopic": "{{depName}}",
-  "regexManagers": [
+  "customManagers": [
     {
+      "customType": "regex",
       "fileMatch": ["/Dockerfile$", "/build.yaml$"],
       "matchStringsStrategy": "any",
       "matchStrings": [
@@ -16,6 +17,7 @@
       "datasourceTemplate": "docker"
     },
     {
+      "customType": "regex",
       "fileMatch": ["/Dockerfile$"],
       "matchStringsStrategy": "any",
       "matchStrings": [
@@ -26,6 +28,7 @@
       "depNameTemplate": "alpine_3_20/{{package}}"
     },
     {
+      "customType": "regex",
       "fileMatch": ["/Dockerfile$"],
       "matchStrings": [
         "ARG TAILSCALE_VERSION=[\"']?(?<currentValue>.+?)[\"']?\\s+"