diff --git a/doc/conf.py b/doc/conf.py
index e1c11d1..709201b 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -21,7 +21,6 @@
 # sys.path.insert(0, os.path.abspath('.'))
 
 import os
-from recommonmark.parser import CommonMarkParser
 
 # -- General configuration ------------------------------------------------
 
@@ -40,10 +39,9 @@ templates_path = ['_templates']
 # The suffix(es) of source filenames.
 # You can specify multiple suffix as a list of string:
 source_parsers = {
-    '.md': CommonMarkParser,
 }
 
-source_suffix = ['.rst', '.md']
+source_suffix = ['.rst']
 
 # The master toctree document.
 master_doc = 'index'