diff --git a/doc/source/conf.py b/doc/source/conf.py
index 3aec3a4a..654a2fe4 100755
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -51,7 +51,7 @@ add_function_parentheses = True
 add_module_names = True
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # -- Options for HTML output --------------------------------------------------
 
diff --git a/releasenotes/source/conf.py b/releasenotes/source/conf.py
index 4843ffea..680dc330 100644
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -87,7 +87,7 @@ 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 = []
@@ -95,7 +95,6 @@ pygments_style = 'sphinx'
 # If true, keep warnings as "system message" paragraphs in the built documents.
 # keep_warnings = False
 
-
 # -- Options for HTML output ----------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for