diff --git a/.github/renovate.json b/.github/renovate.json
index 1990de6..bc54bc4 100644
--- a/.github/renovate.json
+++ b/.github/renovate.json
@@ -8,7 +8,7 @@
   "customManagers": [
     {
       "customType": "regex",
-      "fileMatch": ["/Dockerfile$", "/build.yaml$"],
+      "managerFilePatterns": ["//Dockerfile$/", "//build.yaml$/"],
       "matchStringsStrategy": "any",
       "matchStrings": [
         "ARG BUILD_FROM=(?<depName>.*?):(?<currentValue>.*?)\\s+",
@@ -18,7 +18,7 @@
     },
     {
       "customType": "regex",
-      "fileMatch": ["/Dockerfile$"],
+      "managerFilePatterns": ["//Dockerfile$/"],
       "matchStringsStrategy": "any",
       "matchStrings": [
         "\\s\\s(?<package>[a-z0-9][a-z0-9-_]+)=(?<currentValue>[a-z0-9-_.]+)\\s+"
@@ -29,7 +29,7 @@
     },
     {
       "customType": "regex",
-      "fileMatch": ["/Dockerfile$"],
+      "managerFilePatterns": ["//Dockerfile$/"],
       "matchStrings": [
         "ARG BOOKSTACK_VERSION=[\"']?(?<currentValue>.+?)[\"']?\\s+"
       ],