Update bower.json

Author: thomashoneyman

bower.json

@@ -17,7 +17,7 @@
   ],
   "dependencies": {
     "purescript-argonaut-core": "^6.0.0",
-    "purescript-codec": "thomashoneyman/purescript-codec#master",
+    "purescript-codec": "^4.0.0",
     "purescript-variant": "^7.0.1",
     "purescript-ordered-collections": "^2.0.0",
     "purescript-type-equality": "^4.0.0"