diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d77821..51d6647 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
     name: Test macOS 14
     runs-on: macOS-14
     env:
-      DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_15.4.app/Contents/Developer
     steps:
       - uses: actions/checkout@v4
       - name: Test
@@ -41,7 +41,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Install swiftly
-        run: curl -L https://swift-server.github.io/swiftly/swiftly-install.sh | bash -s -- -y
+        run: curl -L https://swiftlang.github.io/swiftly/swiftly-install.sh | bash -s -- -y
       - name: Install the latest Swift toolchain
         run: swiftly install latest
       - name: Test