diff --git a/lib/modules/datasource/github-runners/index.ts b/lib/modules/datasource/github-runners/index.ts
index d77eda75b178f34cf991b6536cf55625c57ff100..71dc33436a870e8c29725cc3dc9e095da3e5486a 100644
--- a/lib/modules/datasource/github-runners/index.ts
+++ b/lib/modules/datasource/github-runners/index.ts
@@ -27,8 +27,8 @@ export class GithubRunnersDatasource extends Datasource {
       { version: '13' },
       { version: '13-large' },
       { version: '13-xlarge' },
-      { version: '12' },
-      { version: '12-large' },
+      { version: '12-large', isDeprecated: true },
+      { version: '12', isDeprecated: true },
       { version: '11', isDeprecated: true },
       { version: '10.15', isDeprecated: true },
     ],