diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0690e93d9d..62fc45c436 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -71,7 +71,7 @@ jobs:
         run: make clean && make
 
   macosx-build:
-    runs-on: macos-latest
+    runs-on: macos-11
     steps:
       - uses: actions/checkout@v2
       - name: Install dependencies