diff --git a/.github/workflows/ios_ci.yml b/.github/workflows/ios_ci.yml
index 44dea7721..8fcfbd2e5 100644
--- a/.github/workflows/ios_ci.yml
+++ b/.github/workflows/ios_ci.yml
@@ -1,78 +1,78 @@
 name: iOS Build CI
 
 on:
   push:
     branches: [master]
     paths-ignore:
       - 'landing/**'
       - 'web/**'
       - 'docs/**'
       - 'keyserver/**'
   pull_request:
     types: [opened, reopened]
 
 jobs:
   build:
     name: Build and archive iOS app
-    runs-on: macos-11
+    runs-on: macos-12
 
     steps:
       - name: Checkout
         uses: actions/checkout@v2
 
       - name: Install the Apple certificate and provisioning profile
         env:
           BUILD_CERTIFICATE_BASE64: ${{ secrets.BUILD_CERTIFICATE_BASE64 }}
           P12_PASSWORD: ${{ secrets.P12_PASSWORD }}
           BUILD_PROVISION_PROFILE_BASE64: ${{ secrets.BUILD_PROVISION_PROFILE_BASE64 }}
           KEYCHAIN_PASSWORD: ${{ secrets.KEYCHAIN_PASSWORD }}
         run: |
           # create variables
           CERTIFICATE_PATH=$RUNNER_TEMP/build_certificate.p12
           PP_PATH=$RUNNER_TEMP/build_pp.mobileprovision
           KEYCHAIN_PATH=$RUNNER_TEMP/app-signing.keychain-db
 
           # import certificate and provisioning profile from secrets
           echo -n "$BUILD_CERTIFICATE_BASE64" | base64 --decode --output $CERTIFICATE_PATH
           echo -n "$BUILD_PROVISION_PROFILE_BASE64" | base64 --decode --output $PP_PATH
 
           # create temporary keychain
           security create-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
           security set-keychain-settings -lut 21600 $KEYCHAIN_PATH
           security unlock-keychain -p "$KEYCHAIN_PASSWORD" $KEYCHAIN_PATH
 
           # import certificate to keychain
           security import $CERTIFICATE_PATH -P "$P12_PASSWORD" -A -t cert -f pkcs12 -k $KEYCHAIN_PATH
           security list-keychain -d user -s $KEYCHAIN_PATH
 
           # apply provisioning profile
           mkdir -p ~/Library/MobileDevice/Provisioning\ Profiles
           cp $PP_PATH ~/Library/MobileDevice/Provisioning\ Profiles
 
       - name: brew install protobuf
         run: brew install protobuf
 
       - name: npm install -g yarn
         run: npm install -g yarn
 
       - name: yarn --frozen-lockfile --network-timeout 180000
         run: yarn --frozen-lockfile --network-timeout 180000
 
       - name: Save auth_key to file
         working-directory: ./native/ios
         env:
           AUTH_KEY: ${{secrets.AUTH_KEY}}
         run: echo "$AUTH_KEY" > AUTH_KEY.p8
 
       - name: Archive
         working-directory: ./native/ios
         env:
           AUTH_KEY_ID: ${{secrets.AUTH_KEY_ID}}
           AUTH_KEY_ISSUER_ID: ${{secrets.AUTH_KEY_ISSUER_ID}}
         run: xcodebuild archive -workspace Comm.xcworkspace -scheme Comm -configuration Release -archivePath archives/Comm.xcarchive -destination generic/platform=iOS -allowProvisioningUpdates -authenticationKeyIssuerID "$AUTH_KEY_ISSUER_ID" -authenticationKeyID "$AUTH_KEY_ID" -authenticationKeyPath $PWD/AUTH_KEY.p8
 
       - name: Clean up keychain and provisioning profile
         if: ${{ always() }}
         run: |
           rm ~/Library/MobileDevice/Provisioning\ Profiles/build_pp.mobileprovision
           security delete-keychain $RUNNER_TEMP/app-signing.keychain-db