diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 5295b03..6ca2b73 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -14,7 +14,7 @@
         r-version: [release]
         os: [windows-latest, macOS-latest, ubuntu-latest]
     steps:
-    - uses: actions/checkout@v2.3.4
+    - uses: actions/checkout@v2.4.0
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2.3.1
       with: