diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index c0f80c0..2e47dfb 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -34,7 +34,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/lint-python.yml b/.github/workflows/lint-python.yml
index eadd3e0..756abd4 100644
--- a/.github/workflows/lint-python.yml
+++ b/.github/workflows/lint-python.yml
@@ -33,7 +33,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/prepare-release.yml b/.github/workflows/prepare-release.yml
index 2217f10..e2231c3 100644
--- a/.github/workflows/prepare-release.yml
+++ b/.github/workflows/prepare-release.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
           fetch-tags: true
diff --git a/.github/workflows/release-python.yml b/.github/workflows/release-python.yml
index 9e2f413..ec04292 100644
--- a/.github/workflows/release-python.yml
+++ b/.github/workflows/release-python.yml
@@ -19,7 +19,7 @@ jobs:
       tag: ${{ steps.current_version.outputs.CURRENT_VERSION }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
@@ -43,7 +43,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up uv
         uses: astral-sh/setup-uv@v6
@@ -83,7 +83,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/security-python.yml b/.github/workflows/security-python.yml
index 37db8d0..0a5704f 100644
--- a/.github/workflows/security-python.yml
+++ b/.github/workflows/security-python.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/test-python.yml b/.github/workflows/test-python.yml
index 6eb9da9..3d276fe 100644
--- a/.github/workflows/test-python.yml
+++ b/.github/workflows/test-python.yml
@@ -42,7 +42,7 @@ jobs:
           - { python: "3.13", os: "windows-latest" }
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v6
diff --git a/.github/workflows/typecheck-python.yml b/.github/workflows/typecheck-python.yml
index a02a824..021e8da 100644
--- a/.github/workflows/typecheck-python.yml
+++ b/.github/workflows/typecheck-python.yml
@@ -39,7 +39,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Set up uv
         uses: astral-sh/setup-uv@v6