diff --git a/.github/workflows/rbe.yml b/.github/workflows/rbe.yml
index 2ba0705..f9fcc93 100644
--- a/.github/workflows/rbe.yml
+++ b/.github/workflows/rbe.yml
@@ -8,7 +8,7 @@ env:
 jobs:
   run-nativelink-rbe:
     name: NativeLink Cloud RBE
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout under $GITHUB_WORKSPACE
         uses: actions/checkout@main