diff --git a/.travis.yml b/.travis.yml
index c55f8e8..760b478 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,6 @@ language: python
 
 python:
   - "2.7"
-  - "3.3"
   - "3.4"
   - "3.5"
   - "3.6"
diff --git a/test_requirements.txt b/test_requirements.txt
index 0e89e51..57196aa 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -1,4 +1,4 @@
-pytest==3.2.5
+pytest==3.3.0
 pytest-cov==2.5.1
 pytest-xdist==1.20.1
 hypothesis
diff --git a/tox.ini b/tox.ini
index 19d1c93..92d73a7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27, py33, py34, py35, py36, pypy, lint
+envlist = py27, py34, py35, py36, pypy, lint
 
 [testenv]
 deps= -r{toxinidir}/test_requirements.txt