diff --git a/2-usage/2.2-modules/module-resolution/yarn.lock b/2-usage/2.2-modules/module-resolution/yarn.lock
index 7f2c62f..7b42c44 100644
--- a/2-usage/2.2-modules/module-resolution/yarn.lock
+++ b/2-usage/2.2-modules/module-resolution/yarn.lock
@@ -962,8 +962,8 @@ loader-utils@^0.2.16:
     object-assign "^4.0.1"
 
 lodash@^4.14.0:
-  version "4.17.4"
-  resolved "http://registry.npm.taobao.org/lodash/download/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 longest@^1.0.1:
   version "1.0.1"