diff --git a/.github/workflows/deploy_android_app.yml b/.github/workflows/deploy_android_app.yml
index d94dd2f..c56a306 100644
--- a/.github/workflows/deploy_android_app.yml
+++ b/.github/workflows/deploy_android_app.yml
@@ -16,6 +16,9 @@ jobs:
     name: Build CI (Android)
     runs-on: ubuntu-latest
     environment: Production
+    defaults:
+      run:
+        working-directory: frontend/instagramflutterapp
 
     # envirenment: production
     # env:
@@ -28,14 +31,14 @@ jobs:
       cancel-in-progress: true
 
     steps:
+      - name: Check out repository
+        uses: actions/checkout@v6
+
       - name: "Create env file"
         run: |
-          touch env
-          echo API_BASE_URL=${{ vars.API_BASE_URL }} >> env
-          cat env
-
-      - name: Checkout code
-        uses: actions/checkout@v4
+          touch .env
+          echo API_BASE_URL=${{ vars.API_BASE_URL }} >> .env
+          cat .env
 
       - name: Install Flutter
         uses: subosito/flutter-action@v2
@@ -57,12 +60,12 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: app-release-apk
-          path: build/app/outputs/flutter-apk/app-release.apk
+          path: frontend/instagramflutterapp/build/app/outputs/flutter-apk/app-release.apk
 
       - name: Create Release Save Build at Github
         if: startsWith(github.ref, 'refs/tags/')
         uses: softprops/action-gh-release@v1
         with:
-          files: build/app/outputs/flutter-apk/app-release.apk
+          files: frontend/instagramflutterapp/build/app/outputs/flutter-apk/app-release.apk
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/flutter-ci.yml b/.github/workflows/flutter-ci.yml
index 20cd2a2..14f6519 100644
--- a/.github/workflows/flutter-ci.yml
+++ b/.github/workflows/flutter-ci.yml
@@ -17,9 +17,13 @@ jobs:
       run:
         working-directory: frontend/instagramflutterapp
 
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+      cancel-in-progress: true
+
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set up Flutter
         uses: subosito/flutter-action@v2