diff --git a/README.md b/README.md
index 0e75b92..f3ead61 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 # arson [![Build Status](https://travis-ci.org/benjamn/arson.svg?branch=master)](https://travis-ci.org/benjamn/arson)
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/benjamn/arson.svg)](https://greenkeeper.io/)
+
 ### *AR*bitrary *S*tructured *O*bject *N*otation
 
 _Not to be confused with the criminal act of deliberately setting fire to property!_
diff --git a/package.json b/package.json
index 11dcd15..2e15907 100644
--- a/package.json
+++ b/package.json
@@ -18,6 +18,6 @@
     "debug": "node ./node_modules/mocha/bin/mocha --debug-brk --reporter spec --full-trace"
   },
   "devDependencies": {
-    "mocha": "~2.4.5"
+    "mocha": "~3.2.0"
   }
 }