diff --git a/releasenotes/source/conf.py b/releasenotes/source/conf.py
index 06d7167..199837a 100644
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -98,7 +98,7 @@ exclude_patterns = []
 # show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # A list of ignored prefixes for module index sorting.
 # modindex_common_prefix = []