diff --git a/.github/workflows/wheels.yaml b/.github/workflows/wheels.yaml
index 10b1b0a372b..85797089ddc 100644
--- a/.github/workflows/wheels.yaml
+++ b/.github/workflows/wheels.yaml
@@ -17,7 +17,7 @@ jobs:
         os: [
           macos-latest,
           windows-latest,
-          ubuntu-latest,
+          ubuntu-18.04,  # has to be the oldest possible for manylinux
         ]
       fail-fast: false