diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8e56c18..7e92743 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -108,7 +108,7 @@ jobs:
   test_sdist:
     name: Test SDist with python ${{ matrix.python }}
     needs: [build_sdist]
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     strategy:
       fail-fast: false
       matrix: