diff --git a/requirements.txt b/requirements.txt
index c315b4d..0ea9255 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,6 +30,6 @@ requests==2.18.4
 six==1.11.0
 SQLAlchemy==1.2.4
 SQLAlchemy-Utils==0.33.0
-ujson==1.35
+ujson==5.2.0
 urllib3==1.22
 vine==1.1.4