diff --git a/renovate.json5 b/renovate.json5
index e7c707f..e8073a0 100644
--- a/renovate.json5
+++ b/renovate.json5
@@ -1,22 +1,28 @@
 {
-    $schema: "https://docs.renovatebot.com/renovate-schema.json",
+    $schema: 'https://docs.renovatebot.com/renovate-schema.json',
     packageRules: [
         {
-            matchDatasources: ["maven"],
-            matchPackageNames: ["ch.qos.logback:logback-classic"],
+            matchDatasources: [
+                'maven',
+            ],
+            matchPackageNames: [
+                'ch.qos.logback:logback-classic',
+            ],
             enabled: false,
         },
     ],
     customManagers: [
-         {
-             "fileMatch": ["^conventions/src/main/kotlin/tel\\.schich\\.javacan\\.convention\\.native\\.gradle\\.kts$"],
-             matchStrings: [
-                 "dockcrossVersion\\s*=\\s*\"(?<currentValue>[^\"]+)\"",
-             ],
-             // this is hardcoded to linux-x64, but the tag would normally be aligned anyway
-             depNameTemplate: "docker.io/dockcross/linux-x64",
-             datasourceTemplate: "docker",
-             versioningTemplate: "loose",
-         },
-    ]
+        {
+            customType: 'regex',
+            managerFilePatterns: [
+                '/^conventions/src/main/kotlin/tel\\.schich\\.javacan\\.convention\\.native\\.gradle\\.kts$/',
+            ],
+            matchStrings: [
+                'dockcrossVersion\\s*=\\s*"(?<currentValue>[^"]+)"',
+            ],
+            depNameTemplate: 'docker.io/dockcross/linux-x64',
+            datasourceTemplate: 'docker',
+            versioningTemplate: 'loose',
+        },
+    ],
 }