diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
new file mode 100644
index 0000000..2a6558a
--- /dev/null
+++ b/.github/workflows/deploy.yml
@@ -0,0 +1,67 @@
+name: Deploy Backend to ECS
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:  # 手動実行用
+
+permissions:
+  contents: read
+  id-token: write
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v6
+
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v5.1.1
+        with:
+          role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
+          aws-region: ${{ secrets.AWS_REGION }}
+
+      - name: Login to Amazon ECR
+        id: login-ecr
+        uses: aws-actions/amazon-ecr-login@v2
+
+      # DockerイメージのビルドとPush (SHAとlatestの両方を付与)
+      - name: Build, tag, and push image to Amazon ECR
+        id: build-image
+        env:
+          ECR_REGISTRY: ${{ steps.login-ecr.outputs.registry }}
+          IMAGE_TAG: ${{ github.sha }}
+          ECR_REPOSITORY: ${{ secrets.ECR_REPOSITORY_NAME }}
+        run: |
+          docker build --platform linux/amd64 \
+            -t $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG \
+            -t $ECR_REGISTRY/$ECR_REPOSITORY:latest .
+
+          docker push $ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG
+          docker push $ECR_REGISTRY/$ECR_REPOSITORY:latest
+
+          echo "image=$ECR_REGISTRY/$ECR_REPOSITORY:$IMAGE_TAG" >> $GITHUB_OUTPUT
+
+      - name: Download task definition
+        run: |
+          aws ecs describe-task-definition --task-definition ${{ secrets.ECS_TASK_DEFINITION_NAME }} \
+          --query taskDefinition > task-definition.json
+
+      - name: Fill in the new image ID in the Amazon ECS task definition
+        id: task-def
+        uses: aws-actions/amazon-ecs-render-task-definition@v1
+        with:
+          task-definition: task-definition.json
+          container-name: ${{ secrets.ECS_CONTAINER_NAME }}
+          image: ${{ steps.build-image.outputs.image }}
+
+      # 新しいタスク定義をデプロイし、サービスの安定化を待つ
+      - name: Deploy Amazon ECS task definition
+        uses: aws-actions/amazon-ecs-deploy-task-definition@v2
+        with:
+          task-definition: ${{ steps.task-def.outputs.task-definition }}
+          service: ${{ secrets.ECS_SERVICE_NAME }}
+          cluster: ${{ secrets.ECS_CLUSTER_NAME }}
+          wait-for-service-stability: true
\ No newline at end of file
diff --git a/docs/database.md b/docs/database.md
index dcd321e..6384005 100644
--- a/docs/database.md
+++ b/docs/database.md
@@ -126,6 +126,10 @@ erDiagram
 
         string llm_importance_level "重要度"
 
+        string llm_priority "優先度"
+
+        string llm_fix_difficulty "修正難易度"
+
         boolean llm_is_abusive "危険かどうか"
 
         boolean is_analyzed "分析したかどうか"