diff --git a/app/templates/_gulpfile.js b/app/templates/_gulpfile.js
index b06ff76..b136c7c 100644
--- a/app/templates/_gulpfile.js
+++ b/app/templates/_gulpfile.js
@@ -148,8 +148,10 @@ gulp.task('concat:js', ['js:hint'], function () {
 
 	console.log('-------------------------------------------------- CONCAT :js');
 	gulp.src([SETTINGS.src.js + 'plugins/*.js', SETTINGS.src.js + 'app.js', SETTINGS.src.js + '*.js', SETTINGS.src.js + '**/*.js'])
+		.pipe(gulpPlugins.if(!isProduction, gulpPlugins.sourcemaps.init({loadMaps: true})))
 	    .pipe(gulpPlugins.concat('all.js'))
 	    .pipe(gulpPlugins.if(isProduction, gulpPlugins.uglify()))
+	    .pipe(gulpPlugins.if(!isProduction, gulpPlugins.sourcemaps.write('../js')))
 	    .pipe(gulp.dest(SETTINGS.build.js))
 	    .pipe(gulpPlugins.connect.reload());
 });
diff --git a/app/templates/_package.json b/app/templates/_package.json
index 68b631d..f5dd217 100644
--- a/app/templates/_package.json
+++ b/app/templates/_package.json
@@ -7,7 +7,7 @@
     "chalk": "^0.4.0",
     "connect-livereload": "*",
     "gulp": "~3.5.0",
-    "gulp-concat": "~2.1.7",
+    "gulp-concat": "^2.4.1",
     "gulp-connect": "^2.0.5",
     "gulp-grunt": "~0.4.0",
     "gulp-if": "0.0.3",
@@ -24,6 +24,7 @@
     "main-bower-files": "*",
     "gulp-load-plugins": "^0.5.1",
     "gulp-task-listing": "~0.3.0",
+    "gulp-sourcemaps": "^1.2.8",
     "jshint-stylish": "*",
     "open": "*",
     "protractor": "~0.16.1",