diff --git a/yarn.lock b/yarn.lock
index 05d9cb6..35137ab 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1049,23 +1049,6 @@ babel-generator@^6.18.0:
     source-map "^0.5.7"
     trim-right "^1.0.1"
 
-babel-helper-bindify-decorators@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-bindify-decorators/-/babel-helper-bindify-decorators-6.24.1.tgz#14c19e5f142d7b47f19a52431e52b1ccbc40a330"
-  dependencies:
-    babel-runtime "^6.22.0"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
-babel-helper-explode-class@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-helper-explode-class/-/babel-helper-explode-class-6.24.1.tgz#7dc2a3910dee007056e1e31d640ced3d54eaa9eb"
-  dependencies:
-    babel-helper-bindify-decorators "^6.24.1"
-    babel-runtime "^6.22.0"
-    babel-traverse "^6.24.1"
-    babel-types "^6.24.1"
-
 babel-loader@^8.0.4:
   version "8.0.4"
   resolved "http://registry.npm.taobao.org/babel-loader/download/babel-loader-8.0.4.tgz#7bbf20cbe4560629e2e41534147692d3fecbdce6"
@@ -1081,28 +1064,6 @@ babel-messages@^6.23.0:
   dependencies:
     babel-runtime "^6.22.0"
 
-babel-plugin-syntax-decorators@^6.1.18, babel-plugin-syntax-decorators@^6.13.0:
-  version "6.13.0"
-  resolved "https://registry.yarnpkg.com/babel-plugin-syntax-decorators/-/babel-plugin-syntax-decorators-6.13.0.tgz#312563b4dbde3cc806cee3e416cceeaddd11ac0b"
-
-babel-plugin-transform-decorators-legacy@^1.3.5:
-  version "1.3.5"
-  resolved "http://registry.npm.taobao.org/babel-plugin-transform-decorators-legacy/download/babel-plugin-transform-decorators-legacy-1.3.5.tgz#0e492dffa0edd70529072887f8aa86d4dd8b40a1"
-  dependencies:
-    babel-plugin-syntax-decorators "^6.1.18"
-    babel-runtime "^6.2.0"
-    babel-template "^6.3.0"
-
-babel-plugin-transform-decorators@^6.24.1:
-  version "6.24.1"
-  resolved "https://registry.yarnpkg.com/babel-plugin-transform-decorators/-/babel-plugin-transform-decorators-6.24.1.tgz#788013d8f8c6b5222bdf7b344390dfd77569e24d"
-  dependencies:
-    babel-helper-explode-class "^6.24.1"
-    babel-plugin-syntax-decorators "^6.13.0"
-    babel-runtime "^6.22.0"
-    babel-template "^6.24.1"
-    babel-types "^6.24.1"
-
 babel-polyfill@^6.3.14:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-polyfill/-/babel-polyfill-6.26.0.tgz#379937abc67d7895970adc621f284cd966cf2153"
@@ -1111,14 +1072,14 @@ babel-polyfill@^6.3.14:
     core-js "^2.5.0"
     regenerator-runtime "^0.10.5"
 
-babel-runtime@^6.0.0, babel-runtime@^6.2.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
+babel-runtime@^6.0.0, babel-runtime@^6.22.0, babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
   dependencies:
     core-js "^2.4.0"
     regenerator-runtime "^0.11.0"
 
-babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.3.0:
+babel-template@^6.16.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-template/-/babel-template-6.26.0.tgz#de03e2d16396b069f46dd9fff8521fb1a0e35e02"
   dependencies:
@@ -1128,7 +1089,7 @@ babel-template@^6.16.0, babel-template@^6.24.1, babel-template@^6.3.0:
     babylon "^6.18.0"
     lodash "^4.17.4"
 
-babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
+babel-traverse@^6.18.0, babel-traverse@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-traverse/-/babel-traverse-6.26.0.tgz#46a9cbd7edcc62c8e5c064e2d2d8d0f4035766ee"
   dependencies:
@@ -1142,7 +1103,7 @@ babel-traverse@^6.18.0, babel-traverse@^6.24.1, babel-traverse@^6.26.0:
     invariant "^2.2.2"
     lodash "^4.17.4"
 
-babel-types@^6.18.0, babel-types@^6.24.1, babel-types@^6.26.0:
+babel-types@^6.18.0, babel-types@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-types/-/babel-types-6.26.0.tgz#a3b073f94ab49eb6fa55cd65227a334380632497"
   dependencies:
@@ -2109,8 +2070,8 @@ dns-equal@^1.0.0:
   resolved "http://registry.npm.taobao.org/dns-equal/download/dns-equal-1.0.0.tgz#b39e7f1da6eb0a75ba9c17324b34753c47e0654d"
 
 dns-packet@^1.3.1:
-  version "1.3.1"
-  resolved "http://registry.npm.taobao.org/dns-packet/download/dns-packet-1.3.1.tgz#12aa426981075be500b910eedcd0b47dd7deda5a"
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/dns-packet/-/dns-packet-1.3.4.tgz#e3455065824a2507ba886c55a89963bb107dec6f"
   dependencies:
     ip "^1.1.0"
     safe-buffer "^5.0.1"
@@ -5300,10 +5261,14 @@ rxjs@^6.1.0:
   dependencies:
     tslib "^1.9.0"
 
-safe-buffer@5.1.2, safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.2"
   resolved "http://registry.npm.taobao.org/safe-buffer/download/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
 
+safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "http://registry.npm.taobao.org/safe-regex/download/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"