diff --git a/.github/workflows/test-pull-request.yml b/.github/workflows/test-pull-request.yml
index fbcfd67..7e5b64f 100644
--- a/.github/workflows/test-pull-request.yml
+++ b/.github/workflows/test-pull-request.yml
@@ -10,7 +10,7 @@ on:
 jobs:
   swift-code-checks:
     name: Code Tests
-    runs-on: macos-14
+    runs-on: macos-15
 
     steps:
       - uses: actions/checkout@v4
@@ -21,8 +21,8 @@ jobs:
       - name: Lint code
         run: swiftlint lint --config .swiftlint.yml --reporter github-actions-logging
 
-      - name: Select Xcode 15.3
-        run: sudo xcode-select -s /Applications/Xcode_15.3.app
+      - name: Select Xcode
+        run: sudo xcode-select -s /Applications/Xcode_16.4.app
 
       - name: Build UID2 for iOS
         run: xcodebuild -scheme UID2 -destination "generic/platform=iOS"
@@ -31,10 +31,10 @@ jobs:
         run: xcodebuild -scheme UID2 -destination "generic/platform=tvOS"
 
       - name: Run UID2 unit tests
-        run: xcodebuild test -scheme UID2 -sdk iphonesimulator17.4 -destination "OS=17.4,name=iPhone 15"
+        run: xcodebuild test -scheme UID2 -destination "OS=18.5,name=iPhone 16"
       
       - name: Run UID2 unit tests on tvOS
-        run: xcodebuild test -scheme UID2 -sdk appletvsimulator17.4 -destination "OS=17.4,name=Apple TV"
+        run: xcodebuild test -scheme UID2 -destination "OS=18.5,name=Apple TV"
 
       - name: Bootstrap Prebid Dependencies
         run: cd UID2Prebid && ./bootstrap.sh && cd -
@@ -43,7 +43,7 @@ jobs:
         run: xcodebuild -workspace UID2Prebid/UID2Prebid.xcworkspace -scheme UID2Prebid -destination "generic/platform=iOS"
 
       - name: Run UID2Prebid unit tests
-        run: xcodebuild test -workspace UID2Prebid/UID2Prebid.xcworkspace -scheme UID2Prebid -sdk iphonesimulator17.4 -destination "OS=17.4,name=iPhone 15"
+        run: xcodebuild test -workspace UID2Prebid/UID2Prebid.xcworkspace -scheme UID2Prebid -destination "OS=18.5,name=iPhone 16"
       
       - name: Lint UID2 pod spec
         run: pod lib lint UID2.podspec.json --verbose