diff --git a/doc/source/conf.py b/doc/source/conf.py
index 90679f2..adc1760 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 6cd3712..55da5c2 100755
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -52,7 +52,7 @@ 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 --------------------------------------------------