diff --git a/package.json b/package.json
index 7d7a8ff..6bf39a5 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,6 @@
   },
   "devDependencies": {
     "eslint": "^0.17.1",
-    "gulp-sourcemaps": "^1.5.1",
     "jshint": "^2.6.3",
     "mocha": "^2.2.1",
     "should": "^5.2.0"