diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 87b81b2..d2da2fc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
@@ -87,7 +87,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v4
@@ -144,7 +144,7 @@ jobs:
     needs: [test, lint]
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v4
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 61225ba..18a8401 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -53,7 +53,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -110,7 +110,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0 # Full history for git info in docs
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index bf05a47..8dfafe6 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
 
     - name: Set up Python
       uses: actions/setup-python@v4
@@ -57,7 +57,7 @@ jobs:
       version: ${{ steps.version.outputs.version }}
     steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         fetch-depth: 0