diff --git a/package.json b/package.json
index 9e6a2e3..b27fc00 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
   "dependencies": {
     "bluebird": "^3.4.6",
     "localforage": "^1.4.3",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.21",
     "mustache": "^2.3.0",
     "translation.js": "^0.6.8"
   }
diff --git a/yarn.lock b/yarn.lock
index 1d0bcb4..9865806 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4737,9 +4737,10 @@ lodash@^3.8.0:
   version "3.10.1"
   resolved "http://registry.npm.taobao.org/lodash/download/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
 
-lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.13, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.3.0, lodash@^4.5.0:
-  version "4.17.13"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.13.tgz#0bdc3a6adc873d2f4e0c4bac285df91b64fc7b93"
+lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.2, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.2.0, lodash@^4.3.0, lodash@^4.5.0:
+  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, log-symbols@^2.1.0:
   version "2.2.0"