diff --git a/.github/workflows/macos-build.yaml b/.github/workflows/macos-build.yaml
index 63edc0f774..028649a1b7 100644
--- a/.github/workflows/macos-build.yaml
+++ b/.github/workflows/macos-build.yaml
@@ -17,7 +17,7 @@ on:
 jobs:
   build:
     name: Intel
-    runs-on: macos-12
+    runs-on: macos-11
     timeout-minutes: 120
 
     env: # overrides: https://github.com/mbitsnbites/buildcache/blob/master/doc/configuration.md
@@ -37,7 +37,7 @@ jobs:
       - name: Setup Buildcache
         uses: mikehardy/buildcache-action@v2.1.0
         with:
-          cache_key: macos-12-${{ inputs.cachePrefix }}-${{ inputs.cmakePreset }}
+          cache_key: macos-11-${{ inputs.cachePrefix }}-${{ inputs.cmakePreset }}
           buildcache_tag: v0.28.1
 
       - name: CMake Generation