diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 82dc601..391ff1a
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 Flask==0.11.1
 attrdict==2.0.0
-eventlet==0.19.0
+eventlet==0.31.0
 python-socketio==1.6.1
 numpy==1.13.1
 Pillow==2.2.1