diff --git a/.github/workflows/CI-CD_Pipeline.yml b/.github/workflows/CI-CD_Pipeline.yml
index ff1acbc5..944ffa10 100644
--- a/.github/workflows/CI-CD_Pipeline.yml
+++ b/.github/workflows/CI-CD_Pipeline.yml
@@ -190,7 +190,12 @@ jobs:
     if: github.ref == 'refs/heads/main'   # ✅ main 브랜치일 때만 실행
     env:
       DOCKER_IMAGE_NAME: balaw
+      REGISTRY: ghcr.io
+
     steps:
+      - name: Set lowercase repo name
+        run: echo "IMAGE_PREFIX=${GITHUB_REPOSITORY,,}" >> $GITHUB_ENV
+
       - name: Create prod .env file
         run: |
           cat > .env << 'EOF'
@@ -232,11 +237,11 @@ jobs:
             echo "${{ secrets.GHCR_PAT }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
   
             # 최신 이미지 pull & 컨테이너 실행
-            docker pull ghcr.io/prgrms-web-devcourse-final-project/${{ env.DOCKER_IMAGE_NAME }}:latest
+            docker pull ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/${{ env.DOCKER_IMAGE_NAME }}:latest
             docker stop app1 2>/dev/null
             docker rm app1 2>/dev/null
             docker run --env-file /home/ec2-user/prod.env -d --name app1 -p 8080:8080 \
-            ghcr.io/prgrms-web-devcourse-final-project/${{ env.DOCKER_IMAGE_NAME }}:latest
+            ${{ env.REGISTRY }}/${{ env.IMAGE_PREFIX }}/${{ env.DOCKER_IMAGE_NAME }}:latest
             
             # dangling image 정리 + .env 삭제
             docker rmi $(docker images -f "dangling=true" -q)