diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0276ed1..1a9c59f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix: { os: [ubuntu-latest] } # expand to macos/windows later
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: actions/setup-node@v4
         with: { node-version: '20', cache: 'pnpm' }