diff --git a/.github/workflows/test-compile.yml b/.github/workflows/test-compile.yml
index a892c91ce..089e65ca7 100644
--- a/.github/workflows/test-compile.yml
+++ b/.github/workflows/test-compile.yml
@@ -40,8 +40,8 @@ jobs:
           - os: macos-13
             compiler: 'clang'
           # oldest clang not available on ubuntu-latest
-          - os: ubuntu-22.04
-            compiler: 'clang-11'
+          - os: ubuntu-20.04
+            compiler: 'clang-10'
       fail-fast: false
     steps:
       - name: Checkout Yosys