diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d53b675..5213b30 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
   lint-and-typecheck:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install uv
         uses: astral-sh/setup-uv@v5
         with:
@@ -29,7 +29,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install uv
         uses: astral-sh/setup-uv@v5
         with:
@@ -58,7 +58,7 @@ jobs:
       DATABASE_URL: postgresql+asyncpg://postgres:postgres@localhost:5432/ainfera_api
       RUN_INTEGRATION: "1"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install uv
         uses: astral-sh/setup-uv@v5
         with:
diff --git a/.github/workflows/deploy-railway.yml b/.github/workflows/deploy-railway.yml
index a1fe8a0..0119159 100644
--- a/.github/workflows/deploy-railway.yml
+++ b/.github/workflows/deploy-railway.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     if: github.repository == 'ainfera-ai/api'
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Railway CLI
         run: npm install -g @railway/cli@4
       - name: Deploy to Railway
diff --git a/.github/workflows/judge-worker.yml b/.github/workflows/judge-worker.yml
index 67300bd..2870c49 100644
--- a/.github/workflows/judge-worker.yml
+++ b/.github/workflows/judge-worker.yml
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install uv
         uses: astral-sh/setup-uv@v5
         with:
diff --git a/.github/workflows/routed-probe.yml b/.github/workflows/routed-probe.yml
index ee7de80..5ff4e87 100644
--- a/.github/workflows/routed-probe.yml
+++ b/.github/workflows/routed-probe.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install uv
         uses: astral-sh/setup-uv@v5
         with: