diff --git a/bower.json b/bower.json
index ffd5637f6..e5060c602 100644
--- a/bower.json
+++ b/bower.json
@@ -23,7 +23,7 @@
     "zeroclipboard": "~1.3.5",
     "ng-idle": "*",
     "underscore": "~1.7.0",
-    "assert": "~0.1.0"
+    "inherits": "~0.0.1"
   },
   "resolutions": {
     "angular": "=1.2.19"
diff --git a/karma.conf.js b/karma.conf.js
index ba13832ef..331f325ac 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -28,7 +28,7 @@ module.exports = function(config) {
       'lib/angular-route/angular-route.min.js',
       'lib/angular-foundation/mm-foundation.min.js',
       'lib/angular-foundation/mm-foundation-tpls.min.js',
-      'lib/assert/assert.js',
+      'lib/inherits/inherits.js',
       'lib/bitcore.js',
       'lib/underscore/underscore.js',
       'lib/crypto-js/rollups/sha256.js',
diff --git a/package.json b/package.json
index 10ffd2da7..97c4375c4 100644
--- a/package.json
+++ b/package.json
@@ -11,8 +11,8 @@
   },
   "version": "0.4.7",
   "dependencies": {
-    "assert": "^1.1.2",
     "browser-request": "^0.3.2",
+    "inherits": "^2.0.1",
     "mocha": "^1.18.2",
     "mocha-lcov-reporter": "0.0.1",
     "optimist": "^0.6.1",
diff --git a/util/build.js b/util/build.js
index d585219d6..6f15143ef 100644
--- a/util/build.js
+++ b/util/build.js
@@ -46,9 +46,6 @@ var createBundle = function(opts) {
   b.require('underscore', {
     expose: 'underscore'
   });
-  b.require('assert', {
-    expose: 'assert'
-  });
 
   b.require('./copay', {
     expose: 'copay'