diff --git a/.github/workflows/aws_cd.yml b/.github/workflows/aws_cd.yml
index d099320..c9f372e 100644
--- a/.github/workflows/aws_cd.yml
+++ b/.github/workflows/aws_cd.yml
@@ -1,30 +1,35 @@
 name: CD
+
 on:
-  push:
-    branches:
-      - main
+    push:
+        branches:
+            - main
+    workflow_run:
+        workflows: ["Gradle CI"]
+        types:
+            - completed
 
 jobs:
-  deploy:
-    runs-on: ubuntu-latest
+    deploy:
+        runs-on: ubuntu-latest
 
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@v3
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v3
 
-      - name: excuting remote ssh commands
-        uses: appleboy/ssh-action@v1.0.3
-        with:
-          host: ${{ secrets.REMOTE_IP }}
-          port: ${{ secrets.REMOTE_SSH_PORT }}
-          username: ${{ secrets.REMOTE_USERNAME }}
-          key: ${{ secrets.REMOTE_KEY }}
-          script: |
-            cd /home/ubuntu/prisism-backend
-            git pull origin main
-            ./gradlew clean
-            ./gradlew build
-            docker build -t prisism/backend .
-            docker stop prisism-backend || true
-            docker rm prisism-backend  || true
-            docker run -d -it --env-file ./.env -p 8080:8080 --name prisism-backend prisism/backend
\ No newline at end of file
+            - name: excuting remote ssh commands
+              uses: appleboy/ssh-action@v1.0.3
+              with:
+                  host: ${{ secrets.REMOTE_IP }}
+                  port: ${{ secrets.REMOTE_SSH_PORT }}
+                  username: ${{ secrets.REMOTE_USERNAME }}
+                  key: ${{ secrets.REMOTE_KEY }}
+                  script: |
+                      cd /home/ubuntu/prisism-backend
+                      git pull origin main
+                      ./gradlew clean
+                      ./gradlew build
+                      docker build -t prisism/backend .
+                      docker stop prisism-backend || true
+                      docker rm prisism-backend  || true
+                      docker run -d -it --env-file ./.env -p 8080:8080 --name prisism-backend prisism/backend
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
deleted file mode 100644
index 53ee0df..0000000
--- a/.github/workflows/gradle.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: Java CI with Gradle
-
-on:
-  push:
-    branches: [ "main" ]
-  pull_request:
-    branches: [ "main" ]
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-    permissions:
-      contents: read
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up JDK 21
-      uses: actions/setup-java@v4
-      with:
-        java-version: '21'
-        distribution: 'temurin'
-
-    - name: Setup Gradle
-      uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5 # v3.1.0
-
-    - name: Build with Gradle Wrapper
-      run: ./gradlew build
\ No newline at end of file
diff --git a/.github/workflows/gradle_ci.yml b/.github/workflows/gradle_ci.yml
new file mode 100644
index 0000000..7cc6005
--- /dev/null
+++ b/.github/workflows/gradle_ci.yml
@@ -0,0 +1,42 @@
+name: Gradle CI
+
+on:
+    push:
+        branches: [ "main" ]
+    pull_request:
+        branches: [ "main" ]
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        permissions:
+            contents: read
+
+        steps:
+            - uses: actions/checkout@v4
+            - name: Set up JDK 21
+              uses: actions/setup-java@v4
+              with:
+                  java-version: '21'
+                  distribution: 'temurin'
+
+            - name: Setup Gradle
+              uses: gradle/actions/setup-gradle@417ae3ccd767c252f5661f1ace9f835f9654f2b5
+
+            - name: Build with Gradle Wrapper
+              run: ./gradlew build
+
+    ktlint:
+        name: Check Code Quality
+        runs-on: ubuntu-latest
+        steps:
+            -   name: Clone repo
+                uses: actions/checkout@master
+                with:
+                    fetch-depth: 1
+            -   name: ktlint
+                uses: ScaCap/action-ktlint@master
+                with:
+                    github_token: ${{ secrets.GH_TOKEN }}
+                    reporter: github-pr-review
+