diff --git a/test-requirements.txt b/test-requirements.txt
index f90ecc3..11f4a60 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -8,3 +8,4 @@
 nosexcover>=1.0.10 # BSD
 oslotest>=3.2.0 # Apache-2.0
 bandit>=1.5 # Apache-2.0
+mock>=2.0.0 # BSD