diff --git a/monkey/monkey_island/requirements.txt b/monkey/monkey_island/requirements.txt
index 413a42d0d..aacd6393c 100644
--- a/monkey/monkey_island/requirements.txt
+++ b/monkey/monkey_island/requirements.txt
@@ -9,7 +9,7 @@ flask
 Flask-Pymongo
 Flask-Restful
 Flask-JWT
-jsonschema
+jsonschema==2.6.0
 netifaces
 ipaddress
 enum34