diff --git a/.travis.yml b/.travis.yml
index 72e677cd..6ce0741c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,8 @@ addons:
 
 env:
   - PYTHON_VERSION=2.7
+  - PYTHON_VERSION=3.3
+  - PYTHON_VERSION=3.4
   - PYTHON_VERSION=3.5
 
 before_install: