diff --git a/.github/workflows/testflight.yml b/.github/workflows/testflight.yml
index 4015c17e5cd..3db8b89a8fa 100644
--- a/.github/workflows/testflight.yml
+++ b/.github/workflows/testflight.yml
@@ -20,10 +20,10 @@ on:
 jobs:
   upload_to_testflight:
     name: Build and Upload iOS-Swift to Testflight
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
       - uses: actions/checkout@v4
-      - run: ./scripts/ci-select-xcode.sh 15.2
+      - run: ./scripts/ci-select-xcode.sh 16.2
       - uses: ruby/setup-ruby@v1
         with:
           bundler-cache: true
diff --git a/fastlane/Fastfile b/fastlane/Fastfile
index 4c0c8633c4c..37b34742e8a 100644
--- a/fastlane/Fastfile
+++ b/fastlane/Fastfile
@@ -91,7 +91,10 @@ platform :ios do
       clone_branch_directly: true
     )
 
-    build_app(
+    # We must use build_ios_app because otherwise the build will succeed but it will not create the .ipa file. 
+    # The log output will print a warning: "No output path received from gym"
+    # See: https://github.com/fastlane/fastlane/issues/22276#issuecomment-2491517911
+    build_ios_app(
       workspace: "Sentry.xcworkspace",
       scheme: "iOS-Swift",
       include_bitcode: false,