diff --git a/.travis.yml b/.travis.yml
index 58be165..0ba0ea9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,6 @@ node_js:
   - '4'
   - '6'
   - '8'
-  - '9'
+  - '10'
 script: "npm run test-travis"
 after_script: "npm install coveralls@2 && cat ./coverage/lcov.info | coveralls"
diff --git a/lib/byte.js b/lib/byte.js
index 1b3de36..f384b6b 100644
--- a/lib/byte.js
+++ b/lib/byte.js
@@ -21,7 +21,7 @@ function ByteBuffer(options) {
   if (array) {
     this._bytes = array;
   } else {
-    this._bytes = new Buffer(this._size);
+    this._bytes = Buffer.alloc(this._size);
   }
 }
 
@@ -57,12 +57,7 @@ ByteBuffer.prototype._checkSize = function (afterSize) {
   this._size = afterSize * 2;
   this._limit = this._size;
   debug('allocate new Buffer: from %d to %d bytes', old, this._size);
-  var bytes;
-  if (Buffer.allocUnsafe) {
-    bytes = Buffer.allocUnsafe(this._size);
-  } else {
-    bytes = new Buffer(this._size);
-  }
+  var bytes = Buffer.alloc(this._size);
   this._bytes.copy(bytes, 0);
   this._bytes = bytes;
 };
@@ -400,7 +395,7 @@ ByteBuffer.prototype._copy = function (start, end) {
   // if (end - start > 2048) {
   //   return this._bytes.slice(start, end);
   // }
-  var buf = new Buffer(end - start);
+  var buf = Buffer.alloc(end - start);
   this._bytes.copy(buf, 0, start, end);
   return buf;
 };
@@ -594,7 +589,7 @@ ByteBuffer.prototype.flip = function () {
 ByteBuffer.prototype.clear = function () {
   this._limit = this._size;
   this._offset = 0;
-  this._bytes = new Buffer(this._size);
+  this._bytes = Buffer.alloc(this._size);
   return this;
 }
 
diff --git a/test/byte.test.js b/test/byte.test.js
index 3ab52e7..ef994ed 100644
--- a/test/byte.test.js
+++ b/test/byte.test.js
@@ -757,7 +757,7 @@ describe('byte.test.js', function () {
       var buf2 = new Buffer(1);
       assert.throws(function() {
         bytes.get(buf2);
-      }, 'BufferOverflowException');
+      }, null, 'BufferOverflowException');
     });
 
     it('should get(dst, offset, length) again', function () {
@@ -793,7 +793,7 @@ describe('byte.test.js', function () {
       bytes.put(0xfd);
       assert.throws(function () {
         bytes.getRawStringByStringLength(0, str.length + 1);
-      }, 'string is not valid UTF-8 encode');
+      }, null, 'string is not valid UTF-8 encode');
     });
   });