diff --git a/public/doc/yarn.lock b/public/doc/yarn.lock
old mode 100755
new mode 100644
index b34d2d6..f8017e6
--- a/public/doc/yarn.lock
+++ b/public/doc/yarn.lock
@@ -4713,9 +4713,9 @@ lodash.uniq@^4.5.0:
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
 lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.15, lodash@^4.17.19, lodash@^4.17.20, lodash@^4.17.3, lodash@^4.17.5:
-  version "4.17.20"
-  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.20.tgz?cache=0&sync_timestamp=1597335994883&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Flodash%2Fdownload%2Flodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha1-tEqbYpe8tpjxxRo1RaKzs2jVnFI=
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loglevel@^1.6.8:
   version "1.7.0"