diff --git a/AutoEncoder/web_demo/yarn.lock b/AutoEncoder/web_demo/yarn.lock
index ff8d656..44f329c 100644
--- a/AutoEncoder/web_demo/yarn.lock
+++ b/AutoEncoder/web_demo/yarn.lock
@@ -319,8 +319,8 @@ ipaddr.js@1.8.0:
   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.8.0.tgz#eaa33d6ddd7ace8f7f6fe0c9ca0440e706738b1e"
 
 lodash@^4.17.4:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 long@^4.0.0:
   version "4.0.0"