diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0c474dd..e75d8f7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
   pre-commit:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python 3.11
       uses: actions/setup-python@v5
       with:
@@ -27,7 +27,7 @@ jobs:
         sphinx: [">=5,<6"]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
@@ -54,7 +54,7 @@ jobs:
     name: Documentation build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
         with:
@@ -76,7 +76,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python 3.11
         uses: actions/setup-python@v5
         with: