diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0fdb6f5..eb47a62 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,7 +11,7 @@ jobs:
     name: Lint (Python)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
@@ -43,7 +43,7 @@ jobs:
       matrix:
         python-version: ["3.11", "3.12"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -83,7 +83,7 @@ jobs:
     name: Test Frontend
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node 20
         uses: actions/setup-node@v4
@@ -113,7 +113,7 @@ jobs:
   security:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.11"
@@ -130,7 +130,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [test-backend, test-frontend]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Build Docker image
         run: docker build -t medgraph:ci-${{ github.sha }} .