diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 2b47613..e0a4fe1 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2523cea..80d9c43 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python 3.10
       uses: actions/setup-python@v2
       with: