diff --git a/requirements.txt b/requirements.txt
index d4c232b..6ca7264 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ qtoml
 
 # JSON dependencies
 jsonschema
-jsonpickle
+jsonpickle==3.0.4
 bcrypt
 yurl
 six