diff --git a/views/ngXosLib/package.json b/views/ngXosLib/package.json
index 486db22..c25c24a 100644
--- a/views/ngXosLib/package.json
+++ b/views/ngXosLib/package.json
@@ -28,9 +28,11 @@
     "del": "^2.2.0",
     "gulp": "^3.9.0",
     "gulp-angular-filesort": "^1.1.1",
+    "gulp-babel": "^6.1.2",
     "gulp-concat": "^2.6.0",
     "gulp-ng-annotate": "^1.1.0",
     "gulp-ngdocs": "^0.2.13",
+    "gulp-sourcemaps": "^1.6.0",
     "gulp-uglify": "^1.4.2",
     "http-server": "^0.9.0",
     "jasmine-core": "^2.4.1",