diff --git a/.gitignore b/.gitignore
index cd54bf5..3d5ac5b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -15,6 +15,7 @@ results
 
 npm-debug.log
 node_modules
+package-lock.json
 *.sublime*
 .travis.yml
 test
diff --git a/README.md b/README.md
index c5398ce..2c650b9 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@
 </tr>
 <tr>
 <td>Node Version</td>
-<td>>= 0.10</td>
+<td>>= 6</td>
 </tr>
 <tr>
 <td>Less Version</td>
diff --git a/index.js b/index.js
index 5693fe5..0d073b4 100644
--- a/index.js
+++ b/index.js
@@ -86,7 +86,7 @@ module.exports = function (options) {
     }
 
     renderLess(str, opts).then(function(res) {
-      file.contents = new Buffer(res.result);
+      file.contents = Buffer.from(res.result);
       file.path = replaceExt(file.path, '.css');
       if (res.sourcemap) {
         res.sourcemap.file = file.relative;
diff --git a/package.json b/package.json
index 0696e41..ba07640 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "gulp-less",
-  "version": "4.0.1",
+  "version": "5.0.0",
   "description": "Less for Gulp",
   "main": "index.js",
   "scripts": {
@@ -11,7 +11,7 @@
     "url": "git://github.com/gulp-community/gulp-less.git"
   },
   "engines": {
-    "node": ">=0.10.0"
+    "node": ">=6"
   },
   "keywords": [
     "gulpplugin",
@@ -23,15 +23,15 @@
   "dependencies": {
     "less": "^3.7.1 || ^4.0.0",
     "object-assign": "^4.0.1",
-    "plugin-error": "^0.1.2",
-    "replace-ext": "^1.0.0",
-    "through2": "^2.0.0",
+    "plugin-error": "^1.0.0",
+    "replace-ext": "^2.0.0",
+    "through2": "^4.0.0",
     "vinyl-sourcemaps-apply": "^0.2.0"
   },
   "devDependencies": {
     "jshint": "^2.9.4",
-    "mocha": "^3.4.2",
-    "should": "^11.2.0",
+    "mocha": "^9.0.0",
+    "should": "^13.0.0",
     "vinyl": "^2.1.0"
   }
 }
diff --git a/test/main.js b/test/main.js
index 26771f5..00e7d65 100644
--- a/test/main.js
+++ b/test/main.js
@@ -68,7 +68,7 @@ describe('gulp-less', function () {
       var errorCalled = false;
       var stream = less();
       var errorFile = createVinyl('somefile.less',
-        new Buffer('html { color: @undefined-variable; }'));
+        Buffer.from('html { color: @undefined-variable; }'));
       stream.once('error', function (err) {
         err.message.should.equal('variable @undefined-variable is undefined in file '+errorFile.path+' line no. 1');
         errorCalled = true;