diff --git a/.travis.yml b/.travis.yml
index 0fd8463..25c9df6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,6 @@
 language: python
 python:
   - "2.7"
-  - "3.2"
-  - "3.3"
   - "3.4"
   - "3.5"
   - "3.6"
diff --git a/README.rst b/README.rst
index b8d9f17..4af8160 100644
--- a/README.rst
+++ b/README.rst
@@ -79,7 +79,7 @@
 Prerequisites
 -------------
 
-* **pycparser** was tested on Python 2.7, 3.3-3.6, on both Linux and
+* **pycparser** was tested on Python 2.7, 3.4-3.6, on both Linux and
   Windows. It should work on any later version (in both the 2.x and 3.x lines)
   as well.
 
diff --git a/appveyor.yml b/appveyor.yml
index 0329728..05c1c7e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -2,7 +2,6 @@
 
   matrix:
     - PYTHON: "C:\\Python27"
-    - PYTHON: "C:\\Python33"
     - PYTHON: "C:\\Python34"
     - PYTHON: "C:\\Python35"
     - PYTHON: "C:\\Python36"
diff --git a/setup.py b/setup.py
index 9189712..0fcc191 100644
--- a/setup.py
+++ b/setup.py
@@ -55,12 +55,11 @@
         'Programming Language :: Python :: 2',
         'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.2',
-        'Programming Language :: Python :: 3.3',
         'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',
     ],
+    python_requires=">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*",
     packages=['pycparser', 'pycparser.ply'],
     package_data={'pycparser': ['*.cfg']},
     cmdclass={'install': install, 'sdist': sdist},
diff --git a/tox.ini b/tox.ini
index 3f45f1d..02bd1e2 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py34,py35
+envlist = py27,py34,py35,py36
 
 [testenv]
 commands =