diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b3a60e1..9a2571a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: ${{ github.token }}
       - name: Conda setup
diff --git a/.github/workflows/pypi.yaml b/.github/workflows/pypi.yaml
index 1322433..cdb5f22 100644
--- a/.github/workflows/pypi.yaml
+++ b/.github/workflows/pypi.yaml
@@ -8,7 +8,7 @@ jobs:
     if: github.repository == 'NCAR/wrf-python'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v3
         with:
@@ -29,7 +29,7 @@ jobs:
     if: startsWith(github.ref, 'refs/tags')
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v3
         with: