diff --git a/setup.py b/setup.py
index 6ae8fd5..b6c2cc4 100644
--- a/setup.py
+++ b/setup.py
@@ -68,7 +68,7 @@ setup(
     install_requires=[
         'PyYaml>=4.2b1',
         'dnspython>=1.15.0',
-        'futures>=3.2.0',
+        'futures>=3.2.0; python_version<"3.2"',
         'ipaddress>=1.0.22',
         'natsort>=5.5.0',
         'pycountry>=19.8.18',