diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a3c6283e..ce4b98fc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
         python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", pypy-3.9]
         os: ["macos-latest", "ubuntu-latest", "windows-latest"]
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }} # Checkout pull request HEAD commit instead of merge commit
           fetch-depth: 0 # checkout all history, needed for hatch versioning
@@ -87,7 +87,7 @@ jobs:
         python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", pypy-3.9]
         os: ["macos-latest", "ubuntu-latest", "windows-latest"]
     steps:
-        - uses: actions/checkout@v3.3.0
+        - uses: actions/checkout@v4
           with:
             ref: ${{ github.event.pull_request.head.sha }} # Checkout pull request HEAD commit instead of merge commit
             fetch-depth: 0 # checkout all history, needed for hatch versioning
@@ -171,7 +171,7 @@ jobs:
   doc-checks:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }} # Checkout pull request HEAD commit instead of merge commit
 
@@ -247,7 +247,7 @@ jobs:
     runs-on: "ubuntu-latest"
     steps:
       # Checkout code in order to determine PR number
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/publish-docs.yml b/.github/workflows/publish-docs.yml
index 84155829..fa54649d 100644
--- a/.github/workflows/publish-docs.yml
+++ b/.github/workflows/publish-docs.yml
@@ -24,12 +24,12 @@ jobs:
     steps:
 
       # Checkout the gh-pages branch, we need to commit the docs to this branch below
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           ref: gh-pages
       
       #  Now checkout the git ref on which we're working
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4.7.0
         with:
diff --git a/.github/workflows/publish-release.yml b/.github/workflows/publish-release.yml
index 4fdafaf9..ff575650 100644
--- a/.github/workflows/publish-release.yml
+++ b/.github/workflows/publish-release.yml
@@ -66,7 +66,7 @@ jobs:
       - name: Install Hatch
         run: python -m pip install hatch==1.7.0
 
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.repo_release_ref }}
           fetch-depth: 0 # checkout all history, needed for hatch versioning
diff --git a/.github/workflows/test-docker.yml b/.github/workflows/test-docker.yml
index b811c418..16f4dafa 100644
--- a/.github/workflows/test-docker.yml
+++ b/.github/workflows/test-docker.yml
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/test-release.yml b/.github/workflows/test-release.yml
index d28ed46c..7f498bdb 100644
--- a/.github/workflows/test-release.yml
+++ b/.github/workflows/test-release.yml
@@ -59,7 +59,7 @@ jobs:
           gitlint --version
           [ "$(gitlint --version)" == "gitlint, version ${{ inputs.gitlint_version }}" ]
 
-      - uses: actions/checkout@v3.3.0
+      - uses: actions/checkout@v4
         with:
           ref: ${{ inputs.repo_test_ref }}