diff --git a/.github/workflows/protect_main_branch.yml b/.github/workflows/protect_main_branch.yml
index 0c4f398..210d346 100644
--- a/.github/workflows/protect_main_branch.yml
+++ b/.github/workflows/protect_main_branch.yml
@@ -15,7 +15,7 @@ concurrency:
 
 jobs:
   protect-main-branch:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Check branch
         run: |