diff --git a/.travis.yml b/.travis.yml
index 84dd8e950274..f6da14e67f15 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,6 @@ python:
   - "2.6"
   - "2.7"
 # command to install dependencies
-install: "pip install ."
+install: "pip install . unittest2"
 # command to run tests
 script: nosetests