diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7d60fe0..37e26fe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
     strategy:
       matrix:
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-20.04
             platform: linux-x64
           - os: ubuntu-latest
             platform: linux-musl-x64