diff --git a/.github/workflows/ios-sdk-ci.yml b/.github/workflows/ios-sdk-ci.yml
index 1de3c21..3be516a 100644
--- a/.github/workflows/ios-sdk-ci.yml
+++ b/.github/workflows/ios-sdk-ci.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Install ruby and gem dependencies
         uses: ruby/setup-ruby@v1
         with:
-            ruby-version: 3.3.5
+            ruby-version: 3.0
             bundler-cache: true # runs 'bundle install' and caches installed gems automatically
     
   sdk-tests:
@@ -40,6 +40,8 @@ jobs:
     steps:
       - name: Checkout Code
         uses: actions/checkout@v4
+      - name: Select Xcode version
+        run: sudo xcode-select -s '/Applications/Xcode_12.1.app/Contents/Developer'
       - name: Bundle install
         run: bundle install
       - name: Build Demo Swift
@@ -60,7 +62,7 @@ jobs:
       - name: Bundle install
         run: bundle install
       - name: Build Demo Objective-C
-        run: bundle exec fastlane demo-objc
+        run: bundle exec fastlane demo_objc
       - name: Store Artifacts
         uses: actions/upload-artifact@v4
         with: