diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 49aff6fd..9b0cdabe 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -14,7 +14,7 @@ jobs:
   deploy-book:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
 
     # Install dependencies
     - name: Setup Miniconda