diff --git a/setup.py b/setup.py
index b971be7..549ed38 100755
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@ setup(
     packages=find_packages(include=['adaptive_threshold', 'adaptive_threshold.*']),
     install_requires=[
         'python-opencv',
-        'numpy>=1.14.5',
+        'numpy',
         'docopt',
     ],
     entry_points={