diff --git a/package.json b/package.json
index 18fe1ee..e3db634 100644
--- a/package.json
+++ b/package.json
@@ -93,7 +93,7 @@
   "dependencies": {
     "classnames": "^2.2.5",
     "immutable": "^3.8.1",
-    "lodash": "^4.17.2",
+    "lodash": "^4.17.21",
     "react": "^15.5.4",
     "react-addons-css-transition-group": "^15.5.2",
     "react-dom": "^15.5.4",
diff --git a/yarn.lock b/yarn.lock
index 46bf67d..316e9c4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4103,9 +4103,9 @@ lodash.uniq@^4.5.0:
   version "4.5.0"
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
 
-lodash@^4.0.0, lodash@^4.1.0, lodash@^4.13.0, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.6.1:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+lodash@^4.0.0, lodash@^4.1.0, lodash@^4.13.0, lodash@^4.14.0, lodash@^4.15.0, lodash@^4.17.2, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.2.0, lodash@^4.2.1, lodash@^4.3.0, lodash@^4.6.1:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@~2.4.1:
   version "2.4.2"