diff --git a/mayavi/__init__.py b/mayavi/__init__.py
index 95b9a584..ebfa1866 100644
--- a/mayavi/__init__.py
+++ b/mayavi/__init__.py
@@ -14,8 +14,7 @@ __requires__ = [
     'pyface>=6.1.1',
     'pygments',  # This is only needed for the Qt backend but we add it anyway.
     'traits>=6.0.0',
-    'traitsui>=7.0.0',
-    'vtk'
+    'traitsui>=7.0.0'
 ]
 
 __extras_require__ = {