diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e597d8b..d85a0c1 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,7 +8,7 @@ on:
       - master
 jobs:
   manylinux:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@v2
         with: