diff --git a/bak/requirements.txt b/bak/requirements.txt
index e71cf59..a737f99 100644
--- a/bak/requirements.txt
+++ b/bak/requirements.txt
@@ -195,7 +195,7 @@ tqdm==4.25.0
 traitlets==4.3.2
 Twisted==18.7.0
 typing==3.6.6
-ujson==1.35
+ujson==5.4.0
 urllib3==1.22
 virtualenv==16.0.0
 wcwidth==0.1.7