diff --git a/package.json b/package.json
index 58c7dbe..fff90fc 100644
--- a/package.json
+++ b/package.json
@@ -15,11 +15,11 @@
     "url":  "http://github.com/dmajda/pegjs.git"
   },
   "devDependencies": {
-    "jake":      ">= 0.1.10",
-    "uglify-js": ">= 0.0.5",
-    "jshint":    ">= 0.3.1"
+    "jake":      ">= 0.1.22",
+    "uglify-js": ">= 1.2.4",
+    "jshint":    ">= 0.5.5"
   },
   "engines": {
-    "node": ">= 0.4.4"
+    "node": ">= 0.6.6"
   }
 }