diff --git a/requirements.txt b/requirements.txt
index 686c69c..71aaa62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,6 +40,6 @@ toml==0.10.1
 typed-ast==1.4.1
 typing-extensions==3.7.4.2
 tzlocal==2.1
-ujson==3.1.0
+ujson==5.2.0
 urllib3==1.25.9
 Werkzeug==1.0.1