diff --git a/requirements.txt b/requirements.txt
index 9bd605c..47238ba 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -33,7 +33,7 @@ docutils==0.14
 enum-compat==0.0.2
 enum34==1.1.6
 environ==1.0
-eventlet==0.21.0
+eventlet==0.31.0
 flower==0.9.2
 futures==3.2.0
 gevent==1.3.6