diff --git a/requirements.txt b/requirements.txt
index f0ddf0d..4fb03d4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -143,7 +143,7 @@ thinc==7.0.8
 tqdm==4.37.0
 twilio==6.33.0
 tzlocal==2.0.0
-ujson==1.35
+ujson==5.4.0
 uritemplate==3.0.0
 urllib3==1.25.6
 uvloop==0.14.0