diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index c4310eeee..0ac719871 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -17,6 +17,39 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-buildx-action@v3
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v5
+        with:
+          context: ./backend
+          push: true
+          tags: ghcr.io/datalab-mi/basegun/basegun-backend:${{ github.head_ref }}
+          target: dev
+  
+  test:
+    needs: build
+    runs-on: ubuntu-latest
+    container:
+      image: ghcr.io/datalab-mi/basegun/basegun-backend:${{ github.head_ref }}
+      credentials:
+        username: ${{ github.actor }}
+        password: ${{ secrets.github_token }}
+    steps:
+      - run: pwd
+      - run: ls
+      - run: cd /app
+      - run: ls
+
   build-and-test:
     uses: ./.github/workflows/test-on-kube.yml
     needs: tag-pr
diff --git a/backend/Dockerfile b/backend/Dockerfile
index 841f1a94e..e5c83798d 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -29,14 +29,9 @@ RUN mkdir -p src/weights \
     && mv model.pth src/weights/model.pth \
     && echo '{"app": "'${VERSION}'", "model": "'${MODEL}'"}' > versions.json
 
-# launch website
 FROM base as dev
-CMD ["uvicorn", "src.main:app", "--reload", "--host", "0.0.0.0", "--port", "5000"]
-
-FROM base as test
-RUN pip install requests && rm -r /root/.cache
 COPY tests/ tests/
-CMD ["uvicorn", "src.main:app", "--host", "0.0.0.0", "--port", "5000"]
+CMD ["uvicorn", "src.main:app", "--reload", "--host", "0.0.0.0", "--port", "5000"]
 
 FROM base as prod
 RUN pip install --extra-index-url https://download.pytorch.org/whl/cpu \