diff --git a/requirements.txt b/requirements.txt
index 4571c21..b970363 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ six==1.10.0
 termcolor==1.1.0
 toolz==0.8.2
 tqdm==4.14.0
-ujson==1.35
+ujson==5.4.0
 urllib3
 wcwidth==0.1.7
 webencodings==0.5.1