diff --git a/yarn.lock b/yarn.lock
index c671b0d..c327350 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -377,8 +377,8 @@ express@^4.16.3:
     vary "~1.1.2"
 
 extend@~3.0.1:
-  version "3.0.1"
-  resolved "http://registry.npm.taobao.org/extend/download/extend-3.0.1.tgz#a755ea7bc1adfcc5a31ce7e762dbaadc5e636444"
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
 
 extsprintf@1.3.0:
   version "1.3.0"