diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bad1152..4a20fa5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-20.04
     steps:
       - name: 'Check out code'
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: 'Install dependencies'
         run: |