diff --git a/.github/workflows/autoMergePR.yml b/.github/workflows/autoMergePR.yml
index 7975c6c6..0f5cd0bf 100644
--- a/.github/workflows/autoMergePR.yml
+++ b/.github/workflows/autoMergePR.yml
@@ -20,7 +20,7 @@ jobs:
   # This workflow contains a single job called "build"
   build:
     # The type of runner that the job will run on
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps: