diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index c6c8a4cd..e376d8db 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -30,7 +30,7 @@ jobs:
     steps:
     # uses GitHub's checkout action to checkout code form the master branch
     - name: 🛎️ Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
     
     - name: Setup .NET 9.0
       uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 365a67da..31cde84c 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v5
       with:
         # We must fetch at least the immediate parents so that if this is
         # a pull request then we can checkout the head.
diff --git a/.github/workflows/depcheck.yml b/.github/workflows/depcheck.yml
index c0863e34..1a805959 100644
--- a/.github/workflows/depcheck.yml
+++ b/.github/workflows/depcheck.yml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: 🛎️ Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: ⚙️ Setup .NET 9.0
         uses: actions/setup-dotnet@v4
diff --git a/.github/workflows/deploy-site.yml b/.github/workflows/deploy-site.yml
index cb9484db..8c6ca7b6 100644
--- a/.github/workflows/deploy-site.yml
+++ b/.github/workflows/deploy-site.yml
@@ -35,7 +35,7 @@ jobs:
 #     if: ${{ github.event.workflow_run.conclusion == 'success' }}
     steps:
     # uses GitHub's checkout action to checkout code form the master branch
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Setup .NET 9.0
       uses: actions/setup-dotnet@v4