diff --git a/package-lock.json b/package-lock.json
index dd63d0a..34114a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -182,8 +182,8 @@
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         "read-pkg": {
           "version": "1.1.0",
-          "resolved": "https://registry.npm.taobao.org/read-pkg/download/read-pkg-1.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
           "integrity": "sha1-9f+qXs0pyzHAR0vKfXVra7KePyg=",
           "dev": true,
           "requires": {
@@ -12539,7 +12549,7 @@
         },
         "read-pkg-up": {
           "version": "1.0.1",
-          "resolved": "https://registry.npm.taobao.org/read-pkg-up/download/read-pkg-up-1.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-1.0.1.tgz",
           "integrity": "sha1-nWPBMnbAZZGNV/ACpX9AobZD+wI=",
           "dev": true,
           "requires": {
@@ -12549,7 +12559,7 @@
         },
         "string-width": {
           "version": "1.0.2",
-          "resolved": "https://registry.npm.taobao.org/string-width/download/string-width-1.0.2.tgz",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
           "requires": {
@@ -12560,7 +12570,7 @@
         },
         "strip-bom": {
           "version": "2.0.0",
-          "resolved": "https://registry.npm.taobao.org/strip-bom/download/strip-bom-2.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-2.0.0.tgz",
           "integrity": "sha1-YhmoVhZSBJHzV4i9vxRHqZx+aw4=",
           "dev": true,
           "requires": {
@@ -12569,24 +12579,25 @@
         },
         "y18n": {
           "version": "3.2.1",
-          "resolved": "https://registry.npm.taobao.org/y18n/download/y18n-3.2.1.tgz",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-3.2.1.tgz",
           "integrity": "sha1-bRX7qITAhnnA136I53WegR4H+kE=",
           "dev": true
         }
       }
     },
     "yargs-parser": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npm.taobao.org/yargs-parser/download/yargs-parser-5.0.0.tgz",
-      "integrity": "sha1-J17PDX/+Bcd+ZOfIbkzZS/DhIoo=",
+      "version": "5.0.0-security.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-5.0.0-security.0.tgz",
+      "integrity": "sha512-T69y4Ps64LNesYxeYGYPvfoMTt/7y1XtfpIslUeK4um+9Hu7hlGoRtaDLvdXb7+/tfq4opVa2HRY5xGip022rQ==",
       "dev": true,
       "requires": {
-        "camelcase": "^3.0.0"
+        "camelcase": "^3.0.0",
+        "object.assign": "^4.1.0"
       },
       "dependencies": {
         "camelcase": {
           "version": "3.0.0",
-          "resolved": "https://registry.npm.taobao.org/camelcase/download/camelcase-3.0.0.tgz",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-3.0.0.tgz",
           "integrity": "sha1-MvxLn82vhF/N9+c7uXysImHwqwo=",
           "dev": true
         }
diff --git a/package.json b/package.json
index 2089345..7515117 100644
--- a/package.json
+++ b/package.json
@@ -63,7 +63,7 @@
     "friendly-errors-webpack-plugin": "^1.6.1",
     "html-webpack-plugin": "^2.30.1",
     "node-notifier": "^5.1.2",
-    "node-sass": "^4.9.3",
+    "node-sass": "^4.13.1",
     "optimize-css-assets-webpack-plugin": "^3.2.0",
     "ora": "^1.2.0",
     "portfinder": "^1.0.13",
diff --git a/yarn.lock b/yarn.lock
index 0a5e987..9bc8f3d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4305,31 +4305,16 @@ locate-path@^2.0.0:
     p-locate "^2.0.0"
     path-exists "^3.0.0"
 
-lodash.assign@^4.2.0:
-  version "4.2.0"
-  resolved "http://registry.npm.taobao.org/lodash.assign/download/lodash.assign-4.2.0.tgz#0d99f3ccd7a6d261d19bdaeb9245005d285808e7"
-  integrity sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=
-
 lodash.camelcase@^4.3.0:
   version "4.3.0"
   resolved "http://registry.npm.taobao.org/lodash.camelcase/download/lodash.camelcase-4.3.0.tgz#b28aa6288a2b9fc651035c7711f65ab6190331a6"
   integrity sha1-soqmKIorn8ZRA1x3EfZathkDMaY=
 
-lodash.clonedeep@^4.3.2:
-  version "4.5.0"
-  resolved "http://registry.npm.taobao.org/lodash.clonedeep/download/lodash.clonedeep-4.5.0.tgz#e23f3f9c4f8fbdde872529c1071857a086e5ccef"
-  integrity sha1-4j8/nE+Pvd6HJSnBBxhXoIblzO8=
-
 lodash.memoize@^4.1.2:
   version "4.1.2"
   resolved "http://registry.npm.taobao.org/lodash.memoize/download/lodash.memoize-4.1.2.tgz#bcc6c49a42a2840ed997f323eada5ecd182e0bfe"
   integrity sha1-vMbEmkKihA7Zl/Mj6tpezRguC/4=
 
-lodash.mergewith@^4.6.0:
-  version "4.6.2"
-  resolved "https://registry.yarnpkg.com/lodash.mergewith/-/lodash.mergewith-4.6.2.tgz#617121f89ac55f59047c7aec1ccd6654c6590f55"
-  integrity sha512-GK3g5RPZWTRSeLSpgP8Xhra+pnjBC56q9FZYe1d5RN3TJ35dbkGy3YqBSMbyCrlbi+CM9Z3Jk5yTL7RCsqboyQ==
-
 lodash.tail@^4.1.1:
   version "4.1.1"
   resolved "http://registry.npm.taobao.org/lodash.tail/download/lodash.tail-4.1.1.tgz#d2333a36d9e7717c8ad2f7cacafec7c32b444664"
@@ -4340,10 +4325,10 @@ lodash.uniq@^4.5.0:
   resolved "http://registry.npm.taobao.org/lodash.uniq/download/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.3.0, lodash@~4.17.10:
-  version "4.17.14"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
-  integrity sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==
+lodash@^4.0.0, lodash@^4.17.11, lodash@^4.17.15, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.3.0, lodash@~4.17.10:
+  version "4.17.20"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
+  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
 
 log-symbols@^2.1.0:
   version "2.2.0"
@@ -4687,10 +4672,10 @@ mute-stream@0.0.7:
   resolved "http://registry.npm.taobao.org/mute-stream/download/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
-nan@^2.10.0, nan@^2.9.2:
-  version "2.12.1"
-  resolved "http://registry.npm.taobao.org/nan/download/nan-2.12.1.tgz#7b1aa193e9aa86057e3c7bbd0ac448e770925552"
-  integrity sha1-exqhk+mqhgV+PHu9CsRI53CSVVI=
+nan@^2.13.2, nan@^2.9.2:
+  version "2.14.1"
+  resolved "https://registry.yarnpkg.com/nan/-/nan-2.14.1.tgz#d7be34dfa3105b91494c3147089315eff8874b01"
+  integrity sha512-isWHgVjnFjh2x2yuJ/tj3JbwoHu3UC2dX5G/88Cm24yB6YopVgxvBObDY7n5xW6ExmFhJpSEQqFPvq9zaXc8Jw==
 
 nanomatch@^1.2.9:
   version "1.2.13"
@@ -4824,10 +4809,10 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
-node-sass@^4.9.3:
-  version "4.11.0"
-  resolved "http://registry.npm.taobao.org/node-sass/download/node-sass-4.11.0.tgz#183faec398e9cbe93ba43362e2768ca988a6369a"
-  integrity sha1-GD+uw5jpy+k7pDNi4naMqYimNpo=
+node-sass@^4.13.1:
+  version "4.13.1"
+  resolved "https://registry.yarnpkg.com/node-sass/-/node-sass-4.13.1.tgz#9db5689696bb2eec2c32b98bfea4c7a2e992d0a3"
+  integrity sha512-TTWFx+ZhyDx1Biiez2nB0L3YrCZ/8oHagaDalbuBSlqXgUPsdkUSzJsVxeDO9LtPB49+Fh3WQl3slABo6AotNw==
   dependencies:
     async-foreach "^0.1.3"
     chalk "^1.1.1"
@@ -4836,12 +4821,10 @@ node-sass@^4.9.3:
     get-stdin "^4.0.1"
     glob "^7.0.3"
     in-publish "^2.0.0"
-    lodash.assign "^4.2.0"
-    lodash.clonedeep "^4.3.2"
-    lodash.mergewith "^4.6.0"
+    lodash "^4.17.15"
     meow "^3.7.0"
     mkdirp "^0.5.1"
-    nan "^2.10.0"
+    nan "^2.13.2"
     node-gyp "^3.8.0"
     npmlog "^4.0.0"
     request "^2.88.0"