diff --git a/package.json b/package.json
index b97d708..440bccc 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,7 @@
   },
   "dependencies": {
     "firebase": "5.8.3",
+    "lodash": "4.17.11",
     "material-design-icons-iconfont": "4.0.4",
     "vue": "2.6.7",
     "vue-router": "3.0.1",
diff --git a/yarn.lock b/yarn.lock
index 5fbfcea..b06894d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5084,7 +5084,7 @@ lodash.uniq@^4.5.0:
   resolved "https://registry.yarnpkg.com/lodash.uniq/-/lodash.uniq-4.5.0.tgz#d0225373aeb652adc1bc82e4945339a842754773"
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
-lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
+lodash@4.17.11, lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5, lodash@^4.3.0:
   version "4.17.11"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==