diff --git a/requirements.txt b/requirements.txt
index e6b3741..00ba594 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,7 +4,7 @@ pycurl==7.43.0.2
 setuptools==39.0.1
 six==1.12.0
 slick-bitcoinrpc==0.1.4
-ujson==1.35
+ujson==5.4.0
 wheel==0.32.3
 dash==0.43.0
 dash-auth==1.2.0