diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 332b1ee..56b6b9a 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -11,7 +11,7 @@ jobs:
     name: Lint
     runs-on: ubuntu-20.04
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python 3.8
       uses: actions/setup-python@v5
       with:
@@ -37,7 +37,7 @@ jobs:
             python-version: "3.8"
             sphinx-version: "6.0"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set Up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
@@ -79,7 +79,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout source
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     - name: Set up Python 3.10
       uses: actions/setup-python@v5
       with: