diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 61e4e9e..469d836 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     container: python:3
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v5
       with:
         ref: 'main'
     - name: Install pre-requisites
@@ -22,7 +22,7 @@ jobs:
     - name: Build
       run: mkdocs build -v --clean
     - name: Upload
-      uses: actions/upload-pages-artifact@v1
+      uses: actions/upload-pages-artifact@v4
       with:
         path: ./site
   deploy:
@@ -34,4 +34,4 @@ jobs:
     steps:
       - name: Deploy to GitHub Pages
         id: deployment
-        uses: actions/deploy-pages@v1
+        uses: actions/deploy-pages@v4
diff --git a/.github/workflows/validate_pull_request.yml b/.github/workflows/validate_pull_request.yml
index ccbe97e..7a500d6 100644
--- a/.github/workflows/validate_pull_request.yml
+++ b/.github/workflows/validate_pull_request.yml
@@ -6,7 +6,7 @@ jobs:
     runs-on: ubuntu-latest
     container: python:3
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 1
     - name: Install pre-requisites
diff --git a/requirements.txt b/requirements.txt
index 9f37075..f2caded 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1 +1 @@
-mkdocs==1.3.0
+mkdocs==1.6.1