diff --git a/package.json b/package.json
index 4d9932b..c87e443 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "icu"
   ],
   "author": "Dmitry Shirokov <deadrunk@gmail.com>",
-  "dependencies": {
+  "devDependencies": {
     "mocha": ">= 1.8"
   },
   "repository": {