diff --git a/functions/yarn.lock b/functions/yarn.lock
index 65376dc..d5b5997 100644
--- a/functions/yarn.lock
+++ b/functions/yarn.lock
@@ -2742,9 +2742,9 @@ lodash.values@^2.4.1:
     lodash.keys "~2.4.1"
 
 lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.14, lodash@^4.17.4, lodash@^4.17.5:
-  version "4.17.15"
-  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha1-tEf2ZwoEVbv+7dETku/zMOoJdUg=
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 log-symbols@^2.2.0:
   version "2.2.0"