diff --git a/requirements.txt b/requirements.txt
index bac952b..8d1cefa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 wheel>=0.23.0
 Cython>=0.20.2
 argparse>=1.2.1
-futures>=2.1.6
+futures>=2.1.6; python_version == "2.7"
 six>=1.7.3
 gensim>=1.0.0
 scipy>=0.15.0
diff --git a/setup.py b/setup.py
index 538969f..193308a 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@
     'wheel>=0.23.0',
     'Cython>=0.20.2',
     'argparse>=1.2.1',
-    'futures>=2.1.6',
+    'futures>=2.1.6; python_version == "2.7"',
     'six>=1.7.3',
     'gensim>=1.0.0',
     'scipy>=0.15.0',