diff --git a/package.json b/package.json
index 7fc0e03..7b8e068 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "gulp-util": "^3.0.7",
     "html-webpack-plugin": "^2.22.0",
     "imports-loader": "^0.6.5",
-    "lodash": "^4.13.1",
+    "lodash": "^4.17.21",
     "node-sass": "^3.7.0",
     "run-sequence": "^1.2.1",
     "sass": "^0.5.0",
diff --git a/yarn.lock b/yarn.lock
index abeac27..7936653 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4311,9 +4311,9 @@ lodash.words@^3.0.0:
   dependencies:
     lodash._root "^3.0.0"
 
-lodash@>=2.0.0, lodash@^4.0.0, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.16.4, lodash@^4.2.0, lodash@^4.3.0, lodash@^4.6.1:
-  version "4.17.2"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.2.tgz#34a3055babe04ce42467b607d700072c7ff6bf42"
+lodash@>=2.0.0, lodash@^4.0.0, lodash@^4.14.0, lodash@^4.16.4, lodash@^4.17.21, lodash@^4.2.0, 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@^3.10.1, lodash@^3.6.0:
   version "3.10.1"