diff --git a/.github/workflows/debug.yml b/.github/workflows/debug.yml
index 7c4df0210..7f2a47ec6 100644
--- a/.github/workflows/debug.yml
+++ b/.github/workflows/debug.yml
@@ -11,7 +11,7 @@ on:
 jobs:
   build:
     name: Build Cog for Intel
-    runs-on: macos-latest
+    runs-on: macos-11
     env:
       XCODE_DERIVEDDATA_PATH: build
     steps: