diff --git a/doc/source/conf.py b/doc/source/conf.py
index 201d387..4e7a72d 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -22,10 +22,8 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-import sys
 import os
 import subprocess
-import warnings
 
 import openstackdocstheme