diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index fabd3dd..a60cce7 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/toolbox-publish.yml b/.github/workflows/toolbox-publish.yml
index 384f38b..9de8aab 100644
--- a/.github/workflows/toolbox-publish.yml
+++ b/.github/workflows/toolbox-publish.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out sources...
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Authenticate to Google Cloud
         uses: google-github-actions/auth@v2