diff --git a/structure/package.json b/structure/package.json
index 04cb5b1..95221b5 100644
--- a/structure/package.json
+++ b/structure/package.json
@@ -24,7 +24,7 @@
     "gulp-pug": "3.3.0",
     "gulp-sass": "2.3.2",
     "gulp-size": "2.1.0",
-    "gulp-sourcemaps": "2.6.5",
+    "gulp-sourcemaps": "3.0.0",
     "gulp-uglify": "2.1.2",
     "gulp-useref": "3.1.6",
     "main-bower-files": "2.13.1",