diff --git a/package.json b/package.json
index 7878890..c3927d8 100644
--- a/package.json
+++ b/package.json
@@ -67,6 +67,7 @@
     "email-validator": "1.0.5",
     "fs-promise": "0.5.0",
     "graceful-fs": "4.1.6",
+    "ignore": "3.1.5",
     "ini": "1.3.4",
     "minimatch": "3.0.3",
     "minimist": "1.2.0",