diff --git a/yarn.lock b/yarn.lock
old mode 100755
new mode 100644
index c852c58..20a7ea6
--- a/yarn.lock
+++ b/yarn.lock
@@ -1388,8 +1388,8 @@ express@^4.13.3:
     vary "~1.1.0"
 
 extend@~3.0.0:
-  version "3.0.0"
-  resolved "http://registry.npm.taobao.org/extend/download/extend-3.0.0.tgz#5a474353b9f3353ddd8176dfd37b91c83a46f1d4"
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/extend/-/extend-3.0.2.tgz#f8b1136b4071fbd8eb140aff858b1019ec2915fa"
 
 extglob@^0.3.1:
   version "0.3.2"