diff --git a/.travis.yml b/.travis.yml
index 5b28cdc..99ed79f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,10 +4,11 @@ sudo: required
 language: python
 
 python:
-  - 2.6
   - 2.7
-  - 3.3
   - 3.4
+  - 3.5
+  - 3.6
+  - 3.7
   - pypy
 
 env:
diff --git a/README.md b/README.md
index e80586c..30f8d28 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ If you wish to install using the latest upstream C++ Cap'n Proto:
 
 ## Python Versions
 
-Python 2.6/2.7 are supported as well as Python 3.2+. PyPy 2.1+ is also supported.
+Python 2.7, Python 3.4+, and PyPy 2.1+ are supported.
 
 One oddity to note is that `Text` type fields will be treated as byte strings under Python 2, and unicode strings under Python 3. `Data` fields will always be treated as byte strings.
 
diff --git a/setup.py b/setup.py
index a3996a7..83ed9be 100644
--- a/setup.py
+++ b/setup.py
@@ -171,11 +171,12 @@ setup(
         'Programming Language :: C++',
         'Programming Language :: Cython',
         'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.6',
         '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',
+        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: Implementation :: PyPy',
         'Topic :: Communications'],
 )
diff --git a/tox.ini b/tox.ini
index e41316b..6f64bb5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py32,py33,py34
+envlist = py27,py34,py35,py36,py37
 
 [testenv]
 deps=