diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3f8c20e9..d0eced32 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -8,13 +8,13 @@ on:
 
 jobs:
   build:
-    runs-on: macos-13
+    runs-on: macos-15
 
     steps:
       - name: List Xcode installations
         run: sudo ls -1 /Applications | grep "Xcode"
       - name: Select Xcode
-        run: sudo xcode-select -s /Applications/Xcode_15.2.app/Contents/Developer
+        run: sudo xcode-select -s /Applications/Xcode_16.app/Contents/Developer
       - name: Checkout
         uses: actions/checkout@v3
       - name: Build and Test
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 286bbcfe..226d85a5 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -17,13 +17,13 @@ concurrency:
 
 jobs:
   docs:
-    runs-on: macos-13
+    runs-on: macos-15
 
     steps:
     - name: List Xcode installations
       run: sudo ls -1 /Applications | grep "Xcode"
     - name: Select Xcode
-      run: sudo xcode-select -s /Applications/Xcode_15.2.app/Contents/Developer
+      run: sudo xcode-select -s /Applications/Xcode_16.app/Contents/Developer
     - uses: actions/checkout@v3
     - name: Set up Pages
       uses: actions/configure-pages@v4