diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 26fb618..d4d825f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -25,7 +25,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
@@ -44,7 +44,7 @@ jobs:
   #     contents: write
   #     statuses: write
   #   steps:
-  #     - uses: actions/checkout@v3
+  #     - uses: actions/checkout@v4
   #     - uses: julia-actions/setup-julia@v1
   #       with:
   #         version: '1'