diff --git a/.github/workflows/customCI.yaml b/.github/workflows/customCI.yaml
index c2e2f60..90fb5a5 100644
--- a/.github/workflows/customCI.yaml
+++ b/.github/workflows/customCI.yaml
@@ -19,6 +19,17 @@ jobs:
         with:
           node-version: 20
           cache: 'npm'
+      - name: create .env.local with aws credentials
+        env:
+          AWS_S3_REGION: ap-northeast-2
+          AWS_S3_BUCKET: puangbe
+        run: |-
+          cat > .env.local << EOF
+          AWS_S3_REGION=$AWS_S3_REGION
+          AWS_S3_BUCKET=$AWS_S3_BUCKET
+          AWS_S3_ACCESS_ID=${{ secrets.AWS_S3_ACCESS_ID }}"
+          AWS_S3_ACCESS_KEY=${{ secrets.AWS_S3_ACCESS_KEY }}"
+          EOF
       - name: npm package install
         run: npm ci
       - name: run eslint