diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index b9a40588..90ebd476 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@v3
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/workflow.yaml b/.github/workflows/workflow.yaml
index 78575239..bcc7cf26 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -80,7 +80,7 @@ jobs:
 
     steps:
       # check out revision to test
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       # install python
       - name: Set up Python ${{ matrix.python-version }}