diff --git a/requirements.txt b/requirements.txt
index 5208f3b2764fe327354dd1cdf1f5405cdafc8a39..f5c3f865e6a82de60c5f5a05c637cbd006c3b553 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,6 +17,7 @@ ipython==5.5.0
 ligo-lvalert==1.4.3
 ligo-lvalert-overseer==0.1.2
 lxml==4.2.0
+mock==2.0.0
 mysql-python==1.2.5
 packaging==17.1
 phonenumbers==8.8.11