diff --git a/src/backend/middleware/requirements.txt b/src/backend/middleware/requirements.txt
index e6f7851..bbded49 100644
--- a/src/backend/middleware/requirements.txt
+++ b/src/backend/middleware/requirements.txt
@@ -8,7 +8,7 @@ coverage==5.5
 dotmap==1.3.23
 Flask==1.1.2
 Flask-Cors==3.0.10
-flask-restx==0.2.0
+flask-restx==0.5.1
 google-api-core==1.26.0
 google-auth==1.27.0
 google-cloud-dialogflow==2.0.0