diff --git a/.github/workflows/ci-tests.yml b/.github/workflows/ci-tests.yml
index f6e372f8a..75d4257cb 100644
--- a/.github/workflows/ci-tests.yml
+++ b/.github/workflows/ci-tests.yml
@@ -37,7 +37,7 @@ jobs:
     timeout-minutes: 50
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
diff --git a/.github/workflows/docs-check.yml b/.github/workflows/docs-check.yml
index 2e3e1fcd9..2d091afc6 100644
--- a/.github/workflows/docs-check.yml
+++ b/.github/workflows/docs-check.yml
@@ -24,7 +24,7 @@ jobs:
   test-docs:
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: 3.9
@@ -54,7 +54,7 @@ jobs:
   make-docs:
     runs-on: ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version: 3.9
diff --git a/.github/workflows/pypi-release.yml b/.github/workflows/pypi-release.yml
index 04332f34d..bd34044c4 100644
--- a/.github/workflows/pypi-release.yml
+++ b/.github/workflows/pypi-release.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
         python-version: 3.8