diff --git a/package.json b/package.json
index c33701dfc..ba58a9a83 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "gulp-notify": "^2.2.0",
     "gulp-plumber": "^1.0.1",
     "gulp-sass": "^3.1.0",
-    "gulp-sourcemaps": "^1.6.0",
+    "gulp-sourcemaps": "^2.6.0",
     "gulp-uglify": "^1.5.1",
     "gulp-uncss": "^1.0.4",
     "gulp-util": "^3.0.7",