diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 1c94b3f..81a2786 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -34,7 +34,7 @@ jobs:
           - os: macOS-latest
             julia-arch: x86
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           persist-credentials: false
       - uses: julia-actions/setup-julia@v1