diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index b4d76ea8..5194f446 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -2,7 +2,7 @@ name: macOS Build
 on: [push, pull_request]
 jobs:
   build:
-    runs-on: macOS-latest
+    runs-on: macos-11.0
     strategy:
       matrix:
         include: