diff --git a/gulpfile.babel.js b/gulpfile.babel.js
index 0ba0b2b..7977ca6 100644
--- a/gulpfile.babel.js
+++ b/gulpfile.babel.js
@@ -21,19 +21,26 @@ const banner = `/**
  * @license <%= pkg.license %>
  */\n`
 
-gulp.task("prettify-js", [], function() {
+gulp.task("prettify-js", [], () =>{
 	return gulp.src("./src/js/simplemde.js")
-		.pipe(prettify({js: {brace_style: "collapse", indent_char: "\t", indent_size: 1, max_preserve_newlines: 3, space_before_conditional: false}}))
+		.pipe(prettify({
+			js: {
+				brace_style: "collapse",
+				indent_char: "\t",
+				indent_size: 1,
+				max_preserve_newlines: 3,
+				space_before_conditional: false
+			}}))
 		.pipe(gulp.dest("./src/js"));
 });
  
-gulp.task("prettify-css", [], function() {
+gulp.task("prettify-css", [], () =>{
 	return gulp.src("./src/css/simplemde.css")
 		.pipe(prettify({css: {indentChar: "\t", indentSize: 1}}))
 		.pipe(gulp.dest("./src/css"));
 });
 
-gulp.task("lint", ["prettify-js"], function() {
+gulp.task("lint", ["prettify-js"], () =>{
 	gulp.src("./src/js/**/*.js")
 		.pipe(debug())
 		.pipe(eslint())
@@ -47,7 +54,7 @@ function taskBrowserify(opts) {
 		.bundle();
 }
 
-gulp.task("browserify:debug", ["lint"], function() {
+gulp.task("browserify:debug", ["lint"], () =>{
 	return taskBrowserify({debug:true, standalone:"SimpleMDE"})
 		.pipe(source("simplemde.debug.js"))
 		.pipe(buffer())
@@ -55,7 +62,7 @@ gulp.task("browserify:debug", ["lint"], function() {
 		.pipe(gulp.dest("./debug/"));
 });
 
-gulp.task("browserify", ["lint"], function() {
+gulp.task("browserify", ["lint"], () =>{
 	return taskBrowserify({standalone:"SimpleMDE"})
 		.pipe(source("simplemde.js"))
 		.pipe(buffer())
@@ -63,8 +70,8 @@ gulp.task("browserify", ["lint"], function() {
 		.pipe(gulp.dest("./debug/"));
 });
 
-gulp.task("scripts", ["browserify:debug", "browserify", "lint"], function() {
-	var js_files = ["./debug/simplemde.js"];
+gulp.task("scripts", ["browserify:debug", "browserify", "lint"], () =>{
+	const js_files = ["./debug/simplemde.js"];
 	
 	return gulp.src(js_files)
 		.pipe(concat("simplemde.min.js"))
@@ -74,8 +81,8 @@ gulp.task("scripts", ["browserify:debug", "browserify", "lint"], function() {
 		.pipe(gulp.dest("./dist/"));
 });
 
-gulp.task("styles", ["prettify-css"], function() {
-	var css_files = [
+gulp.task("styles", ["prettify-css"], () =>{
+	const css_files = [
 		"./node_modules/codemirror/lib/codemirror.css",
 		"./src/css/*.css",
 		"./node_modules/codemirror-spell-checker/src/css/spell-checker.css"