diff --git a/requirements.txt b/requirements.txt
index d601371..bcaafc8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ chardet==3.0.4
 click==6.7
 enum-compat==0.0.2
 enum34==1.1.6
-eventlet==0.21.0
+eventlet==0.31.0
 Flask==0.12.2
 greenlet==0.4.12
 idna==2.5