diff --git a/package-lock.json b/package-lock.json
index 80c49ec..140f79d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -26,9 +26,9 @@
       }
     },
     "acorn": {
-      "version": "5.7.2",
-      "resolved": "http://registry.npm.taobao.org/acorn/download/acorn-5.7.2.tgz",
-      "integrity": "sha1-kfqHGINIXQZwiAAxhATnK/sm3MU=",
+      "version": "5.7.4",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+      "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==",
       "dev": true
     },
     "acorn-globals": {
@@ -56,6 +56,7 @@
       "version": "0.1.4",
       "resolved": "http://registry.npm.taobao.org/align-text/download/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
+      "optional": true,
       "requires": {
         "kind-of": "^3.0.2",
         "longest": "^1.0.1",
@@ -1656,7 +1657,8 @@
     "is-buffer": {
       "version": "1.1.6",
       "resolved": "http://registry.npm.taobao.org/is-buffer/download/is-buffer-1.1.6.tgz",
-      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4="
+      "integrity": "sha1-76ouqdqg16suoTqXsritUf776L4=",
+      "optional": true
     },
     "is-builtin-module": {
       "version": "1.0.0",
@@ -1875,6 +1877,7 @@
       "version": "3.2.2",
       "resolved": "http://registry.npm.taobao.org/kind-of/download/kind-of-3.2.2.tgz",
       "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
+      "optional": true,
       "requires": {
         "is-buffer": "^1.1.5"
       }
@@ -1943,7 +1946,8 @@
     "longest": {
       "version": "1.0.1",
       "resolved": "http://registry.npm.taobao.org/longest/download/longest-1.0.1.tgz",
-      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc="
+      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
+      "optional": true
     },
     "loud-rejection": {
       "version": "1.6.0",
@@ -2611,7 +2615,8 @@
     "repeat-string": {
       "version": "1.6.1",
       "resolved": "http://registry.npm.taobao.org/repeat-string/download/repeat-string-1.6.1.tgz",
-      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc="
+      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
+      "optional": true
     },
     "repeating": {
       "version": "2.0.1",
diff --git a/yarn.lock b/yarn.lock
index 52ae80d..3f41ec5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -34,9 +34,9 @@ acorn-walk@^6.0.1:
   integrity sha1-Ejy487hMIXHx9/slJhWxx4prGow=
 
 acorn@^5.5.3:
-  version "5.7.3"
-  resolved "https://registry.npm.taobao.org/acorn/download/acorn-5.7.3.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Facorn%2Fdownload%2Facorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
-  integrity sha1-Z6ojG/iBKXS4UjWpZ3Hra9B+onk=
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
+  integrity sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==
 
 acorn@^6.0.1:
   version "6.2.1"