diff --git a/.github/workflows/deploy_documentation.yml b/.github/workflows/deploy_documentation.yml
index abca771..e0474a0 100644
--- a/.github/workflows/deploy_documentation.yml
+++ b/.github/workflows/deploy_documentation.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/deploy_to_pypi.yml b/.github/workflows/deploy_to_pypi.yml
index 1585023..d2d11f7 100644
--- a/.github/workflows/deploy_to_pypi.yml
+++ b/.github/workflows/deploy_to_pypi.yml
@@ -9,7 +9,7 @@ jobs:
     name: Build and publish to PyPI
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - run: git checkout HEAD
diff --git a/.github/workflows/lintandtest.yml b/.github/workflows/lintandtest.yml
index c3204f7..cb8c151 100644
--- a/.github/workflows/lintandtest.yml
+++ b/.github/workflows/lintandtest.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Set up Python 3.10
diff --git a/.github/workflows/update_documentation.yml b/.github/workflows/update_documentation.yml
index f419a82..f2c249b 100644
--- a/.github/workflows/update_documentation.yml
+++ b/.github/workflows/update_documentation.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0