diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 6949c4f6..cb5ca430 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,7 +36,7 @@ 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/workflow.yaml b/.github/workflows/workflow.yaml
index 9be9d5c4..d06b404c 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -111,7 +111,7 @@ jobs:
 
     steps:
       # check out revision to test
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       # install python
       - name: Set up Python ${{ matrix.python }}