diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 815dd0c..1d6a7d8 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -34,7 +34,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Set up Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/docker-build.yml b/.github/workflows/docker-build.yml
index 6f95e5c..4b6d384 100644
--- a/.github/workflows/docker-build.yml
+++ b/.github/workflows/docker-build.yml
@@ -12,7 +12,7 @@ jobs:
     if: github.event_name == 'push' && github.ref == 'refs/heads/main' || github.event_name == 'workflow_dispatch'
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 6fbceb6..9960c15 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -80,7 +80,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -143,7 +143,7 @@ jobs:
     if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3
diff --git a/.github/workflows/pr-validation.yml b/.github/workflows/pr-validation.yml
index 2f2d214..e2103f9 100644
--- a/.github/workflows/pr-validation.yml
+++ b/.github/workflows/pr-validation.yml
@@ -12,7 +12,7 @@ jobs:
     
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       
       - name: Set up Python
         uses: actions/setup-python@v5