diff --git a/package.json b/package.json
index b5f23052..b1c55988 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "mkdirp": "~0.5.1",
     "rimraf": "~2.5.0",
     "underscore.inflections": "~0.2.1",
-    "underscore.string": "~3.2.2",
+    "underscore.string": "~3.3.6",
     "yeoman-generator": "~0.21.1",
     "yo": "~1.5.0"
   },