diff --git a/COMP9900/capstoneproject-comp9900-h18a-yyds/backend/requirements.txt b/COMP9900/capstoneproject-comp9900-h18a-yyds/backend/requirements.txt
index 9447591..c8d928d 100644
--- a/COMP9900/capstoneproject-comp9900-h18a-yyds/backend/requirements.txt
+++ b/COMP9900/capstoneproject-comp9900-h18a-yyds/backend/requirements.txt
@@ -3,7 +3,7 @@ passlib==1.7.4
 Flask==1.1.4 
 Jinja2==2.11.3 
 click==7.1.2 
-flask-restx==0.4.0 
+flask-restx==0.5.1 
 itsdangerous==1.1.0 
 werkzeug==1.0.1
 flask-cors==3.0.10