diff --git a/package.json b/package.json
index 503a13d..d16cf90 100644
--- a/package.json
+++ b/package.json
@@ -49,6 +49,7 @@
     "eslint-plugin-prettier": "^3.1.0",
     "eslint-plugin-promise": "^4.1.1",
     "eslint-plugin-standard": "^4.0.0",
+    "lodash": "^4.17.14",
     "prettier": "^1.17.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index d8bf9a5..bee6942 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1068,6 +1068,11 @@ lodash@^4.17.11:
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
+lodash@^4.17.14:
+  version "4.17.14"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
+  integrity sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==
+
 mime-db@~1.36.0:
   version "1.36.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.36.0.tgz#5020478db3c7fe93aad7bbcc4dcf869c43363397"