diff --git a/README.md b/README.md
index e7546ea..1e91bd4 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@
 [![Build Status](https://travis-ci.org/bigchaindb/site.svg?branch=master)](https://travis-ci.org/bigchaindb/site)
 [![css bigchaindb](https://img.shields.io/badge/css-bigchaindb-39BA91.svg)](https://github.com/bigchaindb/stylelint-config-bigchaindb)
 [![js ascribe](https://img.shields.io/badge/js-ascribe-39BA91.svg)](https://github.com/ascribe/javascript)
+[![Greenkeeper badge](https://badges.greenkeeper.io/bigchaindb/site.svg)](https://greenkeeper.io/)
 <img src="http://forthebadge.com/images/badges/powered-by-electricity.svg" height="20"/>
 <img src="http://forthebadge.com/images/badges/as-seen-on-tv.svg" height="20"/>
 <img src="http://forthebadge.com/images/badges/uses-badges.svg" height="20"/>
diff --git a/package.json b/package.json
index fef5251..3d1e173 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "ie >= 10"
   ],
   "dependencies": {
-    "bigchaindb-driver": "^3.2.0",
+    "bigchaindb-driver": "3.2.0",
     "clipboard": "^2.0.0",
     "gumshoe": "github:cferdinandi/gumshoe",
     "is-in-viewport": "^3.0.0",
@@ -64,7 +64,7 @@
     "gulp-replace": "^0.6.1",
     "gulp-rev": "^8.1.1",
     "gulp-rev-replace": "^0.4.4",
-    "gulp-sass": "^3.2.0",
+    "gulp-sass": "^4.0.0",
     "gulp-sourcemaps": "^2.6.4",
     "gulp-svg-sprite": "^1.3.7",
     "gulp-uglify": "^3.0.0",