diff --git a/README.md b/README.md
index 5ba0f30..18e65c2 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
 ## trigger-then
 
+[![Greenkeeper badge](https://badges.greenkeeper.io/bookshelf/trigger-then.svg)](https://greenkeeper.io/)
+
 Created for use in [bookshelf.js](http://github.com/tgriesser/bookshelf)
 
 Adds promises to `Backbone` event triggers, with a `triggerThen` method,
diff --git a/package.json b/package.json
index 30f50c6..7c565ef 100644
--- a/package.json
+++ b/package.json
@@ -16,15 +16,15 @@
     "test": "mocha -R spec test/index.js"
   },
   "devDependencies": {
-    "backbone": "1.0.x",
-    "mocha": "1.18.x",
-    "when": "2.2.x",
-    "bluebird": "1.2.x",
-    "chai-as-promised": "~4.1.1",
-    "chai": "~1.9.1",
-    "sinon-chai": "~2.5.0",
-    "sinon": "~1.9.1",
-    "sinon-as-promised": "0.0.3",
+    "backbone": "~1.3.3",
+    "mocha": "~3.4.2",
+    "when": "~3.7.8",
+    "bluebird": "~3.5.0",
+    "chai-as-promised": "~7.1.1",
+    "chai": "~4.1.0",
+    "sinon-chai": "~2.12.0",
+    "sinon": "~2.3.8",
+    "sinon-as-promised": "4.0.3",
     "chai-things": "~0.2.0"
   },
   "dependencies": {},