diff --git a/package-lock.json b/package-lock.json
index cf4a4e2..3215fce 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -58,9 +58,9 @@
             }
         },
         "acorn": {
-            "version": "5.7.3",
-            "resolved": "https://registry.npm.taobao.org/acorn/download/acorn-5.7.3.tgz?cache=0&sync_timestamp=1569334654641&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==",
             "dev": true
         },
         "ajv": {
diff --git a/yarn.lock b/yarn.lock
index 4470bba..0bd9f5c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -47,9 +47,9 @@ accord@^0.29.0:
     when "^3.7.8"
 
 acorn@5.X, acorn@^5.0.3:
-  version "5.7.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
-  integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
+  integrity sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==
 
 ajv@^5.1.0:
   version "5.5.2"