diff --git a/yarn.lock b/yarn.lock
index 98501c5..f2afe87 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -195,9 +195,9 @@ acorn-jsx@^5.1.0:
   integrity sha1-KUrbcbVzmLBoABXwo4xWPuHbU4Q=
 
 acorn@^7.1.0:
-  version "7.1.0"
-  resolved "https://registry.npm.taobao.org/acorn/download/acorn-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==
 
 add-stream@^1.0.0:
   version "1.0.0"