diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 05b1e5a..95b3f31 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,32 +2,49 @@ name: CI
 
 on:
   push:
-    branches: [ main, master ]
+    branches: [main, master]
   pull_request:
-    branches: [ main, master ]
+    branches: [main, master]
 
 jobs:
   test:
     runs-on: ubuntu-latest
 
     steps:
-    - name: Checkout code
-      uses: actions/checkout@v3
-
-    - name: Set up Python
-      uses: actions/setup-python@v4
-      with:
-        python-version: '3.10'
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install -r requirements.txt
-
-    - name: Initialize database
-      run: |
-        python init_db.py
-
-    - name: Run tests with pytest
-      run: |
-        pytest -v
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Initialize database
+        run: |
+          python init_db.py
+
+      - name: Run tests with pytest
+        run: |
+          pytest -v
+
+      - name: Install k6
+        run: |
+          sudo gpg -k
+          sudo gpg --no-default-keyring --keyring /usr/share/keyrings/k6-archive-keyring.gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys C5AD17C747E3415A3642D57D77C6C491D6AC1D69
+          echo "deb [signed-by=/usr/share/keyrings/k6-archive-keyring.gpg] https://dl.k6.io/deb stable main" | sudo tee /etc/apt/sources.list.d/k6.list
+          sudo apt-get update
+          sudo apt-get install k6
+
+      - name: Start FastAPI server
+        run: |
+          uvicorn app.main:app --host 0.0.0.0 --port 8000 &
+          sleep 5  # 서버가 시작될 때까지 대기
+
+      - name: Run k6 load test on slow endpoint
+        run: |
+          k6 run k6-test.js -e BASE_URL=http://127.0.0.1:8000
diff --git a/k6-test.js b/k6-test.js
new file mode 100644
index 0000000..a0797c2
--- /dev/null
+++ b/k6-test.js
@@ -0,0 +1,21 @@
+import http from "k6/http";
+import { check, sleep } from "k6";
+
+export const options = {
+  stages: [
+    { duration: "10s", target: 10},
+    { duration: "20s", target: 10},
+    { duration: "10s", target: 0},
+  ],
+  threholds: {
+    http_req_duration: ["p(95)<500"],
+  }
+}
+
+export default function () {
+  const rest = http.get("http://localhost:8000/api/posts/v1/slow");
+  check(rest, {
+    "is status 200": (r) => r.status === 200,
+  });
+  sleep(1); 
+}
\ No newline at end of file