diff --git a/Flask/SocketIO_Simple/requirements.txt b/Flask/SocketIO_Simple/requirements.txt
index c3d311d..c1a4b58 100644
--- a/Flask/SocketIO_Simple/requirements.txt
+++ b/Flask/SocketIO_Simple/requirements.txt
@@ -1,5 +1,5 @@
 Flask==0.12.2
 flask-socketio
-eventlet==0.17.4
+eventlet==0.31.0
 gunicorn==18.0.0