diff --git a/protractor4/package.json b/protractor4/package.json
index 160dfa8..db8d14d 100644
--- a/protractor4/package.json
+++ b/protractor4/package.json
@@ -60,7 +60,7 @@
     "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "0.0.26",
     "karma-webpack": "^1.8.1",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.21",
     "mocha": "^3.2.0",
     "nodemon": "^1.11.0",
     "postcss-loader": "^1.3.2",
diff --git a/protractor4/yarn.lock b/protractor4/yarn.lock
index d825d0f..fd9d139 100644
--- a/protractor4/yarn.lock
+++ b/protractor4/yarn.lock
@@ -3165,9 +3165,9 @@ lodash@^3.8.0:
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-3.10.1.tgz#5bf45e8e49ba4189e17d482789dfd15bd140b7b6"
 
-lodash@^4.14.0, lodash@^4.17.13, lodash@^4.17.2, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.5.0, lodash@^4.5.1:
-  version "4.17.13"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.13.tgz#0bdc3a6adc873d2f4e0c4bac285df91b64fc7b93"
+lodash@^4.14.0, lodash@^4.17.2, lodash@^4.17.21, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.5.0, lodash@^4.5.1:
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
 
 log4js@^0.6.31:
   version "0.6.38"