diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 33d63a8..1105e7b 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
     name: Run test suite
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v3.5.3
 
       # Run the tests
       - name: 'Run tests'