diff --git a/adv_transformer/requirements.txt b/adv_transformer/requirements.txt
index 0f7fb6c..76cddd1 100644
--- a/adv_transformer/requirements.txt
+++ b/adv_transformer/requirements.txt
@@ -122,7 +122,7 @@ toml==0.10.1
 tqdm==4.46.1
 transformers==4.4.2
 typed-ast==1.4.1
-ujson==3.0.0
+ujson==5.4.0
 urllib3==1.25.9
 uvicorn==0.11.5
 uvloop==0.14.0