diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index ac4e325..727469e 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -23,7 +23,7 @@ jobs:
     continue-on-error: ${{ matrix.version == 'nightly' }}
     steps:
       - name: Git checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Julia
         uses: julia-actions/setup-julia@v1
         with:
diff --git a/.github/workflows/Documenter.yml b/.github/workflows/Documenter.yml
index f27969d..8a572cd 100644
--- a/.github/workflows/Documenter.yml
+++ b/.github/workflows/Documenter.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Git checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Set up Julia
         uses: julia-actions/setup-julia@latest
         with: