diff --git a/package.json b/package.json
index 55994ac..ab303bf 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
         "commander": "^2.15.1",
         "detect-indent": "^5.0.0",
         "glob": "^7.1.2",
-        "lodash": "^4.17.10",
+        "lodash": "^4.17.21",
         "prettier": "^1.12.1",
         "typescript": "2.8.3"
     },
diff --git a/yarn.lock b/yarn.lock
index fcb2ae6..28392d1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2345,6 +2345,11 @@ lodash@^4.14.0, lodash@^4.17.4:
   version "4.17.4"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
 
+lodash@^4.17.21:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
+
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"