diff --git a/package.json b/package.json
index 8f8dc48..e567d87 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "gulp-mocha": "^2.2.0",
     "gulp-notify": "^2.2.0",
     "gulp-plumber": "^1.1.0",
-    "gulp-sourcemaps": "^1.6.0",
+    "gulp-sourcemaps": "^1.8.0",
     "gulp-standard": "^6.0.5",
     "isparta": "^4.0.0",
     "run-sequence": "^1.1.5"