diff --git a/package.json b/package.json
index ab9e7fb..b4fc2a8 100644
--- a/package.json
+++ b/package.json
@@ -13,8 +13,8 @@
     "url": "http://github.com/Marak/node_mailer.git"
   },
   "dependencies": {
-    "nodemailer": ">= 0.1.10",
-    "colors": ">= 0.3.0"
+    "nodemailer": "=0.1.20",
+    "colors": "=0.5.0"
   },
   "engine": [ "node >=0.3.0" ],
   "main": "lib/node_mailer"