diff --git a/.github/workflows/build-app.yml b/.github/workflows/build-app.yml
index 97a91a0..54a5fc4 100644
--- a/.github/workflows/build-app.yml
+++ b/.github/workflows/build-app.yml
@@ -14,6 +14,12 @@ jobs:
         uses: subosito/flutter-action@v2
         with:
           channel: stable
+      
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'jetbrains'
+          java-version: '21' 
 
       - name: build target apk
         run: |