diff --git a/yarn.lock b/yarn.lock
index 6e228cd..705ab79 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -696,9 +696,9 @@ abbrev@1.0.x:
   integrity sha1-kbR5JYinc4wl813W9jdSovh3YTU=
 
 acorn@^7.1.0:
-  version "7.1.0"
-  resolved "https://registry.npm.taobao.org/acorn/download/acorn-7.1.0.tgz?cache=0&sync_timestamp=1574806921127&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Facorn%2Fdownload%2Facorn-7.1.0.tgz#949d36f2c292535da602283586c2477c57eb2d6c"
-  integrity sha1-lJ028sKSU12mAig1hsJHfFfrLWw=
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-7.1.1.tgz#e35668de0b402f359de515c5482a1ab9f89a69bf"
+  integrity sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==
 
 amdefine@>=0.0.4:
   version "1.0.1"