diff --git a/tools/my-tools/wechat-assistant/v2/yarn.lock b/tools/my-tools/wechat-assistant/v2/yarn.lock
index 5eb0fd4..46e4330 100644
--- a/tools/my-tools/wechat-assistant/v2/yarn.lock
+++ b/tools/my-tools/wechat-assistant/v2/yarn.lock
@@ -286,8 +286,8 @@ locate-path@^5.0.0:
     p-locate "^4.1.0"
 
 lodash@^4.3.0:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 md5@^2.2.1:
   version "2.2.1"