diff --git a/deps/npm/node_modules/y18n/index.js b/deps/npm/node_modules/y18n/index.js
index d720681628..727362aac0 100644
--- a/deps/npm/node_modules/y18n/index.js
+++ b/deps/npm/node_modules/y18n/index.js
@@ -11,7 +11,7 @@ function Y18N (opts) {
   this.fallbackToLanguage = typeof opts.fallbackToLanguage === 'boolean' ? opts.fallbackToLanguage : true
 
   // internal stuff.
-  this.cache = {}
+  this.cache = Object.create(null)
   this.writeQueue = []
 }