diff --git a/.github/workflows/deploy_docs.yaml b/.github/workflows/deploy_docs.yaml
index 7cc009a..ecf5b7b 100644
--- a/.github/workflows/deploy_docs.yaml
+++ b/.github/workflows/deploy_docs.yaml
@@ -8,7 +8,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3  
+      - uses: actions/checkout@v4  
       - uses: "opensafely-core/setup-action@v1"
         with:
           python-version: "3.11"