diff --git a/.travis.yml b/.travis.yml
index 0456875..463cc14 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,10 +2,15 @@ language: go
 
 go:
   - 1.4
+  - 1.5
+  - 1.6
+  - tip
 
 env:
   - LIBWEBP_VERSION="0.4.1"
   - LIBWEBP_VERSION="0.4.2"
+  - LIBWEBP_VERSION="0.4.3"
+  - LIBWEBP_VERSION="0.5.0"
 
 before_install:
   - sudo apt-get update -qq