diff --git a/setup.py b/setup.py
index b2eb598..73d0f71 100644
--- a/setup.py
+++ b/setup.py
@@ -19,10 +19,11 @@
 
 
 DEPENDENCIES = (
+    'cachetools>=2.0.0',
     'pyasn1-modules>=0.2.1',
     'rsa>=3.1.4',
+    'setuptools>=40.3.0',
     'six>=1.9.0',
-    'cachetools>=2.0.0',
 )