diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 1fab698..6dcbfd9 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -14,7 +14,7 @@ jobs:
         os: [ "windows-latest", "ubuntu-latest" ]
         python-version: ["3.9", "3.10"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: psf/black@stable
         with:
           options: "--check"
diff --git a/.github/workflows/sim-sanity-test.yml b/.github/workflows/sim-sanity-test.yml
index 8d8faa1..a6f6bb3 100644
--- a/.github/workflows/sim-sanity-test.yml
+++ b/.github/workflows/sim-sanity-test.yml
@@ -13,7 +13,7 @@ jobs:
       matrix:
         python-version: ["3.9", "3.10"]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v4
         with: