diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9d201de..599ffd4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: checkout repo
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
 
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 8d553d4..7db6889 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: setup python
         uses: actions/setup-python@v5