diff --git a/tox.ini b/tox.ini
index 36995ebc4..c6dc61155 100644
--- a/tox.ini
+++ b/tox.ini
@@ -93,6 +93,7 @@ deps =
     pyasn1==0.1.9
     pyparsing==1.5.6
     pyrfc3339==1.0
+    pytest==3.2.5
     python-augeas==0.4.1
     pytz==2012c
     requests[security]==2.6.0