diff --git a/requirements.txt b/requirements.txt
index e348787..8d3f1c0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,5 +10,5 @@ python-dateutil==2.8.1
 pytz==2020.1
 requests==2.21.0
 six==1.14.0
-ujson==1.35
+ujson==5.4.0
 urllib3==1.24.3