updated npm packages

sites/all/modules/figli/package.json

@@ -15,7 +15,7 @@
     "gulp-jsmin": "latest",
     "gulp-json-to-sass": "0.0.4",
     "gulp-rename": "latest",
-    "gulp-sass": "latest",
+    "gulp-sass": "^4.0.1",
     "gulp-strip-debug": "^3.0.0",
     "gulp-watch": "latest",
     "minimist": "^1.2.0"