diff --git a/requirements.txt b/requirements.txt
index 06aa9f3b12..cc61b01b92 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -19,3 +19,4 @@ testrepository
 oslo.config>=1.1.0
 # Needed for whitebox testing
 sqlalchemy
+eventlet>=0.12.0