diff --git a/requirements.txt b/requirements.txt
index d7fd59159..4405a6de0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -32,7 +32,7 @@ pika>=0.10.0 # BSD
 pika-pool>=0.1.3 # BSD
 
 # used by pika and zmq drivers
-futures>=3.0;python_version=='2.7' or python_version=='2.6' # BSD
+futures>=3.0.0;python_version=='2.7' or python_version=='2.6' # BSD
 tenacity>=3.2.1 # Apache-2.0
 
 # middleware