diff --git a/setup.py b/setup.py
index 1d358f76819cd1b5f8577f3fac82d0dc956e068e..62863317cffff642a4b435b740d1dd7a76aeebeb 100644
--- a/setup.py
+++ b/setup.py
@@ -2,5 +2,5 @@ from setuptools import setup
 
 setup(
     name='bedtools',
-    requires=['numpy', 'matplotlib'],
+    install_requires=["numpy>=1.6.0", "matplotlib>=1.1.0"],
     )