diff --git a/requirements.txt b/requirements.txt
index 750e280..313292f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,6 @@
 pylint==1.0.0
-mock==1.0.1
 pep8==1.4.6
 epydoc==3.0.1
-
+sphinx=1.0
+mock==1.0.1
+pexpect==2.3