diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5435218..01d1e14 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -8,3 +8,4 @@ robotsuite==1.7.0
 transifex-client==0.12.2
 unittest2==1.1.0
 zope.testrunner==4.5.1
+selenium==3.0.1