diff --git a/README.md b/README.md
index 00f3172..21a5dd1 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ jobs:
             julia-arch: x86
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.julia-version }}