diff --git a/.github/workflows/coverage-pull.yml b/.github/workflows/coverage-pull.yml
index eadd9fa5..8990c5ca 100644
--- a/.github/workflows/coverage-pull.yml
+++ b/.github/workflows/coverage-pull.yml
@@ -7,7 +7,7 @@ permissions: read-all
 
 jobs:
   Coverage:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2