diff --git a/src/requirements.txt b/src/requirements.txt
index 6a486ed..de188f8 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -170,7 +170,7 @@ tqdm==4.41.0
 traitlets==4.3.3
 typed-ast==1.4.0
 typing-extensions==3.7.4.1
-ujson==1.35
+ujson==5.4.0
 uritemplate==3.0.1
 urllib3==1.25.7
 uvloop==0.14.0