diff --git a/requirements.txt b/requirements.txt
index 30a648a06..828d31e9d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@ configparser==5.2.0
 python-engineio==4.3.2
 python-socketio>=4.2.0
 flask-socketio==5.2.0
-flask_sockets==0.2.1
+flask-sockets==0.2.1
 zmq==0.0.0
 paramiko>=2.8.0
 pymongo