diff --git a/requirements-dev.txt b/requirements-dev.txt
index 7fdb175f..ea608147 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -15,4 +15,5 @@ six==1.10.0
 urllib3==1.21.1
 requests-mock==1.3.0
 sphinx==1.6.3
-mock==2.0.0
\ No newline at end of file
+mock==2.0.0
+future==0.16.0