diff --git a/package.json b/package.json
index 5f519056..df6d2dd6 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   "dependencies": {
     "fs-extra": "^5.0.0",
     "globby": "^7.0.0",
-    "lodash": "^4.17.4",
+    "lodash": "^4.17.21",
     "typescript": "^2.2.2"
   },
   "jest": {
diff --git a/yarn.lock b/yarn.lock
index bb87a5d1..2f36d92c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1848,9 +1848,9 @@ lodash.sortby@^4.7.0:
   version "4.7.0"
   resolved "https://registry.yarnpkg.com/lodash.sortby/-/lodash.sortby-4.7.0.tgz#edd14c824e2cc9c1e0b0a1b42bb5210516a42438"
 
-lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.4, lodash@^4.2.0:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.21, lodash@^4.2.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 longest@^1.0.1:
   version "1.0.1"