--- setup.py
+++ setup.py
@@ -5,6 +5,9 @@
 #
 # Author: Matthew Good <trac@matt-good.net>
 
+__requires__ = "Genshi >= 0.6"
+
+import pkg_resources
 from setuptools import setup
 
 extra = {}
@@ -47,7 +50,7 @@ setup(
     },
     test_suite = 'acct_mgr.tests.suite',
     zip_safe=True,
-    install_requires = ['Genshi >= 0.5', 'Trac >= 0.11'],
+    install_requires = ['Genshi >= 0.6', 'Trac >= 0.12'],
     extras_require = {'Babel': 'Babel>= 0.9.5', 'Trac': 'Trac >= 0.12'},
     entry_points = {
         'trac.plugins': [