diff --git a/package.json b/package.json
index 71e0816..2d4010f 100644
--- a/package.json
+++ b/package.json
@@ -64,7 +64,7 @@
     "gulp-plumber": "1.1.0",
     "gulp-shell": "0.6.5",
     "jest": "22.0.5",
-    "lodash": "4.17.10",
+    "lodash": "4.17.21",
     "markdown-toc": "1.2.0",
     "plugin-error": "1.0.1",
     "run-sequence": "2.2.1",
diff --git a/yarn.lock b/yarn.lock
index a317248..6343088 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4088,13 +4088,9 @@ lodash.templatesettings@^4.0.0:
   dependencies:
     lodash._reinterpolate "~3.0.0"
 
-lodash@4.17.10, lodash@^4.16.2, lodash@^4.17.10:
-  version "4.17.10"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.10.tgz#1b7793cf7259ea38fb3661d4d38b3260af8ae4e7"
-
-lodash@^4.0.0, lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.2.1, lodash@^4.3.0:
-  version "4.17.4"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.4.tgz#78203a4d1c328ae1d86dca6460e369b57f4055ae"
+lodash@4.17.21, lodash@^4.0.0, lodash@^4.11.1, lodash@^4.13.1, lodash@^4.14.0, lodash@^4.16.2, lodash@^4.17.10, lodash@^4.17.2, lodash@^4.17.4, lodash@^4.2.1, lodash@^4.3.0:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 lodash@~1.0.1:
   version "1.0.2"