diff --git a/requirements.txt b/requirements.txt
index 4308a31..52f764a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -27,7 +27,7 @@ requests==2.22.0
 retrying==1.3.3
 sanic==19.3.1
 six==1.14.0
-ujson==1.35
+ujson==5.4.0
 urllib3==1.25.8
 uvloop==0.14.0
 webencodings==0.5.1