diff --git a/.github/workflows/linux_build.yml b/.github/workflows/linux_build.yml
index 6b31de61..16f2b6ae 100644
--- a/.github/workflows/linux_build.yml
+++ b/.github/workflows/linux_build.yml
@@ -11,7 +11,7 @@ on:
 jobs:
   build:
     name: Build SwiftFormat for Linux
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v3
         with: