diff --git a/lib/urlsafe-base64.js b/lib/urlsafe-base64.js
index 7f26afa..7de486d 100644
--- a/lib/urlsafe-base64.js
+++ b/lib/urlsafe-base64.js
@@ -56,7 +56,7 @@ exports.decode = function decode(base64) {
     .replace(/\-/g, '+') // Convert '-' to '+'
     .replace(/\_/g, '/'); // Convert '_' to '/'
 
-  return new Buffer(base64, 'base64');
+  return Buffer.from(base64, 'base64');
 
 };
 
diff --git a/package.json b/package.json
index 06e1e35..b4de351 100644
--- a/package.json
+++ b/package.json
@@ -2,21 +2,25 @@
   "name": "urlsafe-base64",
   "version": "1.0.0",
   "description": "URL Safe Base64 encoding",
-  "keywords": ["base64", "encoding", "url", "util"],
+  "keywords": [
+    "base64",
+    "encoding",
+    "url",
+    "util"
+  ],
   "author": "RGBboy <l-_-l@rgbboy.com>",
-  "repository" : {
-    "type" : "git",
-    "url" : "http://github.com/RGBboy/urlsafe-base64"
+  "repository": {
+    "type": "git",
+    "url": "http://github.com/RGBboy/urlsafe-base64"
   },
   "main": "index",
-  "dependencies": {
-  },
+  "dependencies": {},
   "devDependencies": {
-    "mocha": "1.5.x",
-    "should": "1.2.x"
+    "mocha": "5.2.0",
+    "should": "13.2.3"
   },
-  "scripts" : {
-    "test" : "make test",
-    "unit" : "make unit"
+  "scripts": {
+    "test": "make test",
+    "unit": "make unit"
   }
-}
\ No newline at end of file
+}
diff --git a/test/urlsafe-base64.test.js b/test/urlsafe-base64.test.js
index 02f3c92..20e59c0 100644
--- a/test/urlsafe-base64.test.js
+++ b/test/urlsafe-base64.test.js
@@ -34,7 +34,7 @@ describe('URL Safe Base64', function () {
 
     it('should encode a buffer correctly', function (done) {
       var testBase64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
-          testBuffer = new Buffer(testBase64, 'base64'),
+          testBuffer = Buffer.from(testBase64, 'base64'),
           expectedBase64 = testBase64.replace('+', '-').replace('/', '_');
       URLSafeBase64.encode(testBuffer).should.equal(expectedBase64);
       done();
@@ -52,7 +52,7 @@ describe('URL Safe Base64', function () {
     it('should decode a base64 string correctly', function (done) {
       var encodedBase64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-/',
           normalBase64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/',
-          testBuffer = new Buffer(normalBase64, 'base64'),
+          testBuffer = Buffer.from(normalBase64, 'base64'),
           decoded = URLSafeBase64.decode(encodedBase64);
       decoded.should.be.an.instanceof(Buffer);
       decoded.toString('utf8').should.equal(testBuffer.toString('utf8'));