diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f748bfd..dc46176 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
   build-docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: nikeee/docfx-action@v1.0.0
         name: Build Documentation
         with:
@@ -23,7 +23,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
       with:
         ref: 'gh-pages'