diff --git a/docs/source/conf.py b/docs/source/conf.py
index 1da920be48d7e3497cdbad6ce7c8a06f6420f0d2..c7ff0ff98a0cf5bc67c734a78320d3c68119d2e8 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -51,6 +51,7 @@ add_module_names = False
 
 bibtex_bibfiles = ['refs.bib']
 bibtex_default_style = 'unsrt'
+bibtex_reference_style = 'author_year'
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']