diff --git a/_config.yml b/_config.yml
index adef1912..6438799b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -1,7 +1,7 @@
 # Learn more at https://jupyterbook.org/customize/config.html
 title: ""
 author: The Xarray Community
-copyright: '2024'
+copyright: "2024"
 logo: images/logo.png
 only_build_toc_files: true