diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 20a554a..da6cf50 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -160,7 +160,7 @@ jobs:
   # Build Eclipse eMoflon macOS user
   build-macos-user:
     needs: [create-splash-image, collect-github-api-artifacts]
-    runs-on: [macos-latest]
+    runs-on: [macos-12]
     steps:
       - name: Start message
         run: echo "Started CI build (Eclipse eMoflon macOS user)."