diff --git a/docs/conf.py b/docs/conf.py
index a0073e0..554609a 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -19,7 +19,7 @@
 # -- Project information -----------------------------------------------------
 
 project = 'NVD API Client'
-copyright = '2022, kannkyo'
+copyright = '2023, kannkyo'
 author = 'kannkyo'
 
 
@@ -33,7 +33,8 @@
     'recommonmark',
     'sphinx_markdown_tables',
     'sphinx.ext.autodoc',
-    'sphinx.ext.viewcode'
+    'sphinx.ext.viewcode',
+    'sphinx.ext.napoleon'
 ]
 
 # Add any paths that contain templates here, relative to this directory.