diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6dd0f54f..c1e65da5 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -31,7 +31,7 @@ jobs:
       run: yarn run lint
 
   macOS-Build:
-    runs-on: macos-11.0
+    runs-on: macos-10.15
     needs: Lint
     strategy:
       matrix: