diff --git a/.github/workflows/link-check.yml b/.github/workflows/link-check.yml
index f2d48b0fe..2533c548b 100644
--- a/.github/workflows/link-check.yml
+++ b/.github/workflows/link-check.yml
@@ -11,7 +11,7 @@ jobs:
 
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python 3.10
         uses: actions/setup-python@v5
diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index b6f03a9ae..289424461 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -14,7 +14,7 @@ jobs:
         python: ["3.10", "3.11"]
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up a version of Python
         uses: actions/setup-python@v5
diff --git a/.github/workflows/static.yml b/.github/workflows/static.yml
index 4fc4d7899..49e7f3069 100644
--- a/.github/workflows/static.yml
+++ b/.github/workflows/static.yml
@@ -33,7 +33,7 @@ jobs:
         python: ["3.10"]
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       # Install Python.
       - name: Set up a version of Python
         uses: actions/setup-python@v5