diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bda04c3..caf0014 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
@@ -62,7 +62,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: lint
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node.js 22
         uses: actions/setup-node@v4
@@ -85,7 +85,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: lint
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
@@ -118,7 +118,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: lint
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node.js 22
         uses: actions/setup-node@v4
@@ -141,7 +141,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [test-backend, test-frontend, typecheck]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Node.js 22
         uses: actions/setup-node@v4
@@ -185,7 +185,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: lint
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
diff --git a/.github/workflows/docker-deploy.yml b/.github/workflows/docker-deploy.yml
index ff19b8c..70f7f92 100644
--- a/.github/workflows/docker-deploy.yml
+++ b/.github/workflows/docker-deploy.yml
@@ -37,7 +37,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
@@ -77,7 +77,7 @@ jobs:
       image-tag: ${{ steps.meta.outputs.tags }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3