diff --git a/webhooks/python-sanic/requirements.txt b/webhooks/python-sanic/requirements.txt
index 1c9d166..e04bc76 100644
--- a/webhooks/python-sanic/requirements.txt
+++ b/webhooks/python-sanic/requirements.txt
@@ -14,7 +14,7 @@ requests==2.22.0
 requests-async==0.5.0
 rfc3986==1.3.2
 sanic==19.9.0
-ujson==1.35
+ujson==5.2.0
 urllib3==1.25.6
 uvloop==0.13.0
 websockets==9.1