diff --git a/setup.py b/setup.py
index 531a5af285b93c3c1fb914a8acac423b1f6017f0..5d8d23fb71fe6ae7f048fe35ad416b7fd946d6f1 100644
--- a/setup.py
+++ b/setup.py
@@ -18,5 +18,7 @@ setup(
     description='Python interface and tools for FINESSE',
     long_description=open('README.txt').read(),
     install_requires=[
+    "PyQt4 >= 4.8.3",
+    "numpy >= 1.6.2"
     ],
 )
\ No newline at end of file