diff --git a/package-lock.json b/package-lock.json
index c85ba41..d6304d0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1759,9 +1759,9 @@
       }
     },
     "acorn": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npm.taobao.org/acorn/download/acorn-6.2.1.tgz?cache=0&sync_timestamp=1563633123962&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Facorn%2Fdownload%2Facorn-6.2.1.tgz",
-      "integrity": "sha1-PthCLW3sCeYSHMeoQ8qGozCoa1E="
+      "version": "6.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA=="
     },
     "acorn-dynamic-import": {
       "version": "4.0.0",
@@ -7485,9 +7485,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "5.7.3",
-          "resolved": "https://registry.npm.taobao.org/acorn/download/acorn-5.7.3.tgz?cache=0&sync_timestamp=1563633123962&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Facorn%2Fdownload%2Facorn-5.7.3.tgz",
-          "integrity": "sha1-Z6ojG/iBKXS4UjWpZ3Hra9B+onk="
+          "version": "5.7.4",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.4.tgz",
+          "integrity": "sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg=="
         }
       }
     },
diff --git a/yarn.lock b/yarn.lock
index 99819cd..ddba82e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1472,8 +1472,8 @@ acorn-walk@^6.0.1:
   resolved "https://registry.npm.taobao.org/acorn-walk/download/acorn-walk-6.2.0.tgz#123cb8f3b84c2171f1f7fb252615b1c78a6b1a8c"
 
 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"
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
 
 acorn@^6.0.1, acorn@^6.0.4, acorn@^6.0.5, acorn@^6.0.7:
   version "6.2.0"