diff --git a/package.json b/package.json
index 6ac4e19..58637a6 100644
--- a/package.json
+++ b/package.json
@@ -10,8 +10,9 @@
   "license": "ISC",
   "dependencies": {
     "class.extend": "^0.9.2",
-    "crawler": "^1.1.2",
-    "minimist": "^1.2.0",
-    "trim": "0.0.1"
+    "crawler": "^1.3.0",
+    "minimist": "^1.2.5",
+    "trim": "^1.0",
+    "css-what": "5.0.1"
   }
 }