diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index f3f55f2..1ce4f56 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -23,7 +23,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0  # To support cross-branch testing in regression tests
       - uses: julia-actions/setup-julia@v1