diff --git a/.github/workflows/greetings.yml b/.github/workflows/greetings.yml
index bdde1cca7b..48687e51e4 100644
--- a/.github/workflows/greetings.yml
+++ b/.github/workflows/greetings.yml
@@ -4,7 +4,7 @@ on: [pull_request, issues]
 
 jobs:
   greeting:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
     - uses: actions/first-interaction@v1
       with: