diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3c74f24..6e5073e 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -17,6 +17,7 @@ jobs:
 
   build_demo:
     name: Build ${{ matrix.scheme }} (Xcode ${{ matrix.xcode_version }})
+    runs-on: macos-13
     needs: [swift_test]
     strategy:
       # Disabling fail-fast ensures that the job will run all configurations of the matrix, even if one fails.