diff --git a/docs/conf.py b/docs/conf.py
index d575c36..12a1776 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -192,4 +192,4 @@
 jupyter_execute_notebooks = "off"
 
 # bibtext files
-bibtex_bibfiles = ['refs.bib']
\ No newline at end of file
+bibtex_bibfiles = ["refs.bib"]