diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index a7b9459..6c2d319 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -28,7 +28,7 @@ jobs:
     # Check that the Jekyll can actually build
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build the site in the jekyll/builder container
         run: |
           docker run \
@@ -43,7 +43,7 @@ jobs:
     # Check markdown files are markdown-lint compliant
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Lint markdown files with markdown-lint
         uses: articulate/actions-markdownlint@v1.1.0
         with:
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 59b3761..6c1b7d2 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -11,7 +11,7 @@ jobs:
     outputs:
       target: ${{ steps.set-output.outputs.target }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: get deployment target
         run: |
@@ -44,7 +44,7 @@ jobs:
     if: needs.set-deploy-type.outputs.target == 'gh-pages'
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Deploy Jekyll Site
       uses: sujaykundu777/jekyll-deploy-action@1.0.3
@@ -59,7 +59,7 @@ jobs:
     if: needs.set-deploy-type.outputs.target == 'firebase'
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: setup ruby
       uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/jekyll.yml b/.github/workflows/jekyll.yml
index 52728c3..25a832e 100644
--- a/.github/workflows/jekyll.yml
+++ b/.github/workflows/jekyll.yml
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Setup Ruby
         uses: ruby/setup-ruby@55283cc23133118229fd3f97f9336ee23a179fcf # v1.146.0
         with: