diff --git a/README.md b/README.md
index 246e080..17ec9fe 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ bower install bitcore-message
 To sign a message:
 
 ```javascript
-var bitcore = require('bitcore');
+var bitcore = require('bitcore-lib');
 var Message = require('bitcore-message');
 
 var privateKey = bitcore.PrivateKey.fromWIF('cPBn5A4ikZvBTQ8D7NnvHZYCAxzDZ5Z2TSGW2LkyPiLxqYaJPBW4');
diff --git a/index.js b/index.js
index fa9d743..f3bf89d 100644
--- a/index.js
+++ b/index.js
@@ -1,4 +1,4 @@
-var bitcore = require('bitcore');
+var bitcore = require('bitcore-lib');
 bitcore.Message = require('./lib/message');
 
 module.exports = bitcore.Message;
\ No newline at end of file
diff --git a/lib/message.js b/lib/message.js
index bdec2a1..2e99ad6 100644
--- a/lib/message.js
+++ b/lib/message.js
@@ -1,6 +1,6 @@
 'use strict';
 
-var bitcore = require('bitcore');
+var bitcore = require('bitcore-lib');
 var _ = bitcore.deps._;
 var PrivateKey = bitcore.PrivateKey;
 var PublicKey = bitcore.PublicKey;
diff --git a/package.json b/package.json
index d3726e9..e6d5a00 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "url": "https://github.com/bitpay/bitcore-message.git"
   },
   "dependencies": {
-    "bitcore": "^0.13.0"
+    "bitcore-lib": "^0.13.7"
   },
   "devDependencies": {
     "bitcore-build": "bitpay/bitcore-build",
diff --git a/test/message.js b/test/message.js
index d769493..279c661 100644
--- a/test/message.js
+++ b/test/message.js
@@ -4,7 +4,7 @@ var chai = require('chai');
 var expect = chai.expect;
 var should = chai.should();
 
-var bitcore = require('bitcore');
+var bitcore = require('bitcore-lib');
 var Address = bitcore.Address;
 var Signature = bitcore.crypto.Signature;
 var Message = require('../');