diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index cabf03e..8514d82 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -29,7 +29,7 @@ jobs:
           - x86
           - x64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
@@ -50,7 +50,7 @@ jobs:
 #      contents: write
 #      statuses: write
 #    steps:
-#      - uses: actions/checkout@v2
+#      - uses: actions/checkout@v4
 #      - uses: julia-actions/setup-julia@v1
 #        with:
 #          version: '1'