diff --git a/.gitignore b/.gitignore
index acb3481..74bbd23 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,6 @@
 node_modules
-./bitauth.js
-./bitauth.min.js
-./tests.js
+bitauth.js
+bitauth.min.js
+tests.js
 
 
diff --git a/.travis.yml b/.travis.yml
index d01e3fa..03fadfb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,6 +15,7 @@ node_js:
   - '0.10'
   - '0.12'
   - '4'
+  - '6'
 before_install:
   - export DISPLAY=:99.0
   - sh -e /etc/init.d/xvfb start
diff --git a/package.json b/package.json
index cb9fca3..1d061d9 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   "devDependencies": {
     "benchmark": "^1.0.0",
     "body-parser": "^1.14.1",
-    "browserify": "~11.2.0",
+    "browserify": "~13.1.0",
     "bundle-collapser": "^1.2.1",
     "chai": "=1.9.1",
     "express": "^4.13.3",