diff --git a/package.json b/package.json
index a347f5d..4e267ec 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "gatsby-source-filesystem": "^2.0.18",
     "gatsby-transformer-json": "^2.1.7",
     "gatsby-transformer-remark": "^2.2.1",
-    "lodash": "^4.17.14",
+    "lodash": "^4.17.21",
     "mobx": "^4",
     "node-sass": "^4.11.0",
     "prismjs": "^1.15.0",
diff --git a/yarn.lock b/yarn.lock
index 15c783d..472f9df 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6642,15 +6642,10 @@ lodash.uniq@^4.5.0:
   resolved "http://registry.npm.taobao.org/lodash.uniq/download/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@^4.0.0, lodash@^4.11.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@~4.17.10:
-  version "4.17.11"
-  resolved "http://registry.npm.taobao.org/lodash/download/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha1-s56mIp72B+zYniyN8SU2iRysm40=
-
-lodash@^4.17.14:
-  version "4.17.14"
-  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.14.tgz?cache=0&other_urls=https%3A%2F%2Fregistry.npm.taobao.org%2Flodash%2Fdownload%2Flodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
-  integrity sha1-nOSHrmbJYlT+ILWZ8htoFgKAeLo=
+lodash@^4.0.0, lodash@^4.11.1, lodash@^4.15.0, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.21, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0, lodash@~4.17.10:
+  version "4.17.21"
+  resolved "https://registry.npm.taobao.org/lodash/download/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha1-Z5WRxWTDv/quhFTPCz3zcMPWkRw=
 
 loglevel@^1.4.1:
   version "1.6.1"