diff --git a/setup.cfg b/setup.cfg
index 0ce97cbd2..0e0dd0a9f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -20,6 +20,7 @@ classifier =
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.4
+    Programming Language :: Python :: 3.5
 
 [files]
 packages =
diff --git a/tox.ini b/tox.ini
index 99916ec71..573194eaf 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 # noted to use py34 you need virtualenv >= 1.11.4
 [tox]
-envlist = py34,py27,pypy,pep8,docs
+envlist = py35,py34,py27,pypy,pep8,docs
 minversion = 1.6
 skipsdist = True