diff --git a/dist/fix/fix.js b/dist/fix/fix.js
index e16bdf99f..63ebd6374 100644
--- a/dist/fix/fix.js
+++ b/dist/fix/fix.js
@@ -904,6 +904,10 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
         return target;
     }
 
+    function freeze() {
+        return Object.freeze.apply(null, arguments);
+    }
+
     /**
      * Delete a property and trigger change if necessary.
      */
@@ -1519,6 +1523,7 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons
     exports.notify = notify;
     exports.defineReactive = defineReactive;
     exports.set = set;
+    exports.freeze = freeze;
     exports.del = del;
     exports.Watcher = Watcher;
     exports.pushTarget = pushTarget;
diff --git a/dist/fix/fix.proxy.js b/dist/fix/fix.proxy.js
index f332da88b..19eca6178 100644
--- a/dist/fix/fix.proxy.js
+++ b/dist/fix/fix.proxy.js
@@ -1838,6 +1838,7 @@
       if (!runner.effect.active) {
         return;
       }
+
       if (cb) {
         // watch(source, cb)
         var newValue = runner();
@@ -2404,6 +2405,15 @@
     }
 
     target[key] = val;
+    return target;
+  }
+  function freeze(value) {
+    Object.defineProperty(value, '__v_skip', {
+      configurable: true,
+      enumerable: false,
+      value: value
+    });
+    return value;
   }
   function del(target, key) {
     if (_.isArray(target)) {
@@ -2456,6 +2466,7 @@
   exports.config = config;
   exports.define = define;
   exports.del = del;
+  exports.freeze = freeze;
   exports.mixin = mixin;
   exports.set = set;
   exports.toJSON = toJSON;