diff --git a/requirements.txt b/requirements.txt
index 6c57a12..469fc60 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -99,7 +99,7 @@ toolz==0.8.2
 TPOT==0.8.3
 tqdm==4.14.0
 Twisted==17.5.0
-ujson==1.35
+ujson==5.4.0
 Unidecode==0.4.20
 update-checker==0.16
 w3lib==1.18.0