diff --git a/.github/workflows/periodic-ci.yaml b/.github/workflows/periodic-ci.yaml
index 0db9dab..60d4bbd 100644
--- a/.github/workflows/periodic-ci.yaml
+++ b/.github/workflows/periodic-ci.yaml
@@ -21,7 +21,7 @@ jobs:
           - "3.12"
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       # Use the oldest supported version of Python to update dependencies,
       # not the matrixed Python version, since this accurately reflects