diff --git a/requirements.txt b/requirements.txt
index 6cbda1f..4e86685 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,6 +3,6 @@ click==6.7
 httptools==0.0.13
 multidict==4.5.2
 sanic==19.3.1
-ujson==1.35
+ujson==5.4.0
 uvloop==0.12.2
 websockets==6.0