diff --git a/requirements.txt b/requirements.txt
index b6dcff0..895e3c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 serial
 Flask==0.11.1
 Flask-SocketIO==2.6.2
-eventlet==0.19.0
+eventlet==0.31.0
 greenlet==0.4.10
 python-dateutil==2.5.3
 python-engineio==0.9.2