diff --git a/.gitea/workflows/test-local-signing.yml b/.gitea/workflows/test-local-signing.yml
index 020d5686..3012f2bb 100644
--- a/.gitea/workflows/test-local-signing.yml
+++ b/.gitea/workflows/test-local-signing.yml
@@ -101,7 +101,16 @@ jobs:
           security unlock-keychain -p "$KEYCHAIN_PASSWORD" "$KEYCHAIN_PATH"
           security list-keychains -s "$KEYCHAIN_PATH" $(security list-keychains | xargs)
           
-          # Import certificate
+          # Download and import Apple root certificates
+          echo "📥 Downloading Apple root certificates..."
+          curl -O https://www.apple.com/certificateauthority/AppleWWDRCAG3.cer
+          curl -O https://www.apple.com/certificateauthority/DeveloperIDG2.cer
+          
+          # Import Apple root certificates
+          security import AppleWWDRCAG3.cer -k "$KEYCHAIN_PATH" -T /usr/bin/codesign
+          security import DeveloperIDG2.cer -k "$KEYCHAIN_PATH" -T /usr/bin/codesign
+          
+          # Import developer certificate
           echo "${{ secrets.MACOS_CERTIFICATE }}" | base64 --decode > certificate.p12
           security import certificate.p12 -k "$KEYCHAIN_PATH" -P "${{ secrets.MACOS_CERTIFICATE_PWD }}" -T /usr/bin/codesign
           
@@ -113,15 +122,22 @@ jobs:
           security find-identity -v -p codesigning "$KEYCHAIN_PATH"
           
           # Cleanup
-          rm -f certificate.p12
+          rm -f certificate.p12 AppleWWDRCAG3.cer DeveloperIDG2.cer
         shell: bash
         
       - name: Sign App Bundle
         run: |
           echo "🔏 Signing app bundle..."
           
+          # Get the identity hash
+          IDENTITY=$(security find-identity -v -p codesigning "$KEYCHAIN_PATH" | grep "Developer ID Application" | awk '{print $2}')
+          if [ -z "$IDENTITY" ]; then
+            echo "❌ Error: No valid Developer ID Application identity found"
+            exit 1
+          fi
+          
           # Sign the app bundle
-          codesign --force --options runtime --entitlements LuckyWorld.entitlements --sign "Developer ID Application" --timestamp TestApp.app
+          codesign --force --options runtime --entitlements LuckyWorld.entitlements --sign "$IDENTITY" --timestamp TestApp.app
           
           # Verify signing
           echo "🔍 Verifying signature..."