diff --git a/.travis.yml b/.travis.yml
index 816562e..dd1927a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,12 @@
 language: generic
 sudo: false
 env:
+  - TEST_ZSH=5.3.1
+  - TEST_ZSH=5.2
+  - TEST_ZSH=5.1.1
   - TEST_ZSH=5.0.8
   - TEST_ZSH=4.3.17
+  - TEST_ZSH=4.3.17-travis
 
 install:
   - |