diff --git a/api-ref/source/conf.py b/api-ref/source/conf.py
index aea4cf4dd3..0654c31e3c 100644
--- a/api-ref/source/conf.py
+++ b/api-ref/source/conf.py
@@ -98,7 +98,7 @@ add_module_names = False
 show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # -- Options for man page output ----------------------------------------------
 
diff --git a/doc/source/conf.py b/doc/source/conf.py
index ecbedec6ff..948daceda1 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -124,7 +124,7 @@ add_function_parentheses = True
 add_module_names = True
 
 # The name of the Pygments (syntax highlighting) style to use.
-pygments_style = 'sphinx'
+pygments_style = 'native'
 
 # A list of glob-style patterns that should be excluded when looking for
 # source files. They are matched against the source file names relative to the
diff --git a/releasenotes/source/conf.py b/releasenotes/source/conf.py
index c1b9c0b460..7cefab1043 100644
--- a/releasenotes/source/conf.py
+++ b/releasenotes/source/conf.py
@@ -105,7 +105,7 @@ 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 = []