diff --git a/.github/workflows/distribution.yml b/.github/workflows/distribution.yml
index add54cb..8a702f3 100644
--- a/.github/workflows/distribution.yml
+++ b/.github/workflows/distribution.yml
@@ -13,7 +13,7 @@ jobs:
   dist:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 9ef3312..6a33d82 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -24,7 +24,7 @@ jobs:
         os: [ubuntu-latest, macOS-latest]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
@@ -41,7 +41,7 @@ jobs:
     name: Calculate and upload test coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 2
       - uses: actions/setup-python@v5
@@ -60,7 +60,7 @@ jobs:
     name: Build documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: actions/setup-python@v5