diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 60d3ccc..b41cb30 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -64,7 +64,7 @@ jobs:
               run: cd docs && make html
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Python environment
         uses: ./.github/actions/setup-venv
@@ -106,7 +106,7 @@ jobs:
     needs: [checks]
     if: startsWith(github.ref, 'refs/tags/')
     steps:
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
 
       - name: Setup Python
         uses: actions/setup-python@v4
diff --git a/.github/workflows/pr_checks.yml b/.github/workflows/pr_checks.yml
index 162d5f4..2e3b96e 100644
--- a/.github/workflows/pr_checks.yml
+++ b/.github/workflows/pr_checks.yml
@@ -18,7 +18,7 @@ jobs:
     if: github.event_name == 'pull_request'
 
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
 
     - name: Check that CHANGELOG has been updated
       run: |
diff --git a/.github/workflows/setup.yml b/.github/workflows/setup.yml
index bbc64bb..846ab1f 100644
--- a/.github/workflows/setup.yml
+++ b/.github/workflows/setup.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: [ubuntu-latest]
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Python
         uses: actions/setup-python@v4