diff --git a/setup.py b/setup.py
index 57274d83b..41c62cd5e 100644
--- a/setup.py
+++ b/setup.py
@@ -34,6 +34,7 @@ def read(*rnames):
       url='http://gcovr.com',
       license='BSD',
       platforms=["any"],
+      python_requires='>=2.6',
       description='A Python script for summarizing gcov data.',
       long_description=read('README.txt'),
       classifiers=[
@@ -45,8 +46,11 @@ def read(*rnames):
           'Operating System :: Microsoft :: Windows',
           'Operating System :: Unix',
           'Programming Language :: Python',
+          'Programming Language :: Python :: 2.7',
+          'Programming Language :: Python :: 3.4',
+          'Programming Language :: Python :: 3.5',
           'Programming Language :: Unix Shell',
-          'Topic :: Software Development :: Libraries :: Python Modules'
+          'Topic :: Software Development :: Libraries :: Python Modules',
       ],
       packages=['gcovr'],
       keywords=['utility'],