diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e034a7..6047ad0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,10 +8,10 @@ on:
 
 jobs:
   test:
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
     - uses: actions/checkout@v4
     - name: Run tests
       env:
-        DEVELOPER_DIR: /Applications/Xcode_16.app
+        DEVELOPER_DIR: /Applications/Xcode_16.4.app
       run: xcodebuild test -scheme Xcodes