diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9a1b5b1..9f94978 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
     - uses: actions/setup-dotnet@v5
@@ -26,7 +26,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depths: 0
     - uses: astral-sh/setup-uv@v6
@@ -80,7 +80,7 @@ jobs:
       run: |
         choco install -y mono ${{ matrix.python == 'pypy3' && '--x86' || '' }}
 
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Install dependencies
       run: |
diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 1fe8fee..10721a9 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -6,7 +6,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v5
     - name: Build Sphinx documentation
       run: |
         pip install -r doc/requirements.txt