diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ecbc7be..63c1d63 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -20,6 +20,7 @@ jobs:
     runs-on: [macos-11]
     steps:
       - uses: actions/checkout@v2
+      - run: sudo xcode-select --switch /Applications/Xcode_13.0.app/Contents/Developer
       - name: Install RubyGems
         run: |
           cd ios
diff --git a/.github/workflows/build_nightly.yml b/.github/workflows/build_nightly.yml
index fc12664..a0e8bee 100644
--- a/.github/workflows/build_nightly.yml
+++ b/.github/workflows/build_nightly.yml
@@ -20,6 +20,7 @@ jobs:
     runs-on: [macos-11]
     steps:
       - uses: actions/checkout@v2
+      - run: sudo xcode-select --switch /Applications/Xcode_13.0.app/Contents/Developer
       - name: Install RubyGems
         run: |
           cd ios