diff --git a/requirements.txt b/requirements.txt
index 73819aa11..b337c81df 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ six>=1.9.0 # MIT
 enum34;python_version=='2.7' or python_version=='2.6' or python_version=='3.3' # BSD
 
 # For async and/or periodic work
-futurist>=0.11.0 # Apache-2.0
+futurist!=0.15.0,>=0.11.0 # Apache-2.0
 
 # For reader/writer + interprocess locks.
 fasteners>=0.7 # Apache-2.0