diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 5932324..01b3e21 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -28,7 +28,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       # See https://dev.to/epassaro/caching-anaconda-environments-in-github-actions-5hde
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 94dac07..e3dfd87 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -23,7 +23,7 @@ jobs:
       id-token: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Set up Python 3.10
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3008117..e809ade 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -28,7 +28,7 @@ jobs:
           - macos-latest
           - windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Set up Python ${{ matrix.py }}