diff --git a/package-lock.json b/package-lock.json
index 8cec584..bc868b6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -86,7 +86,7 @@
         "less": "2.7.3",
         "less-loader": "4.0.5",
         "less-plugin-autoprefix": "1.5.1",
-        "lodash": "4.17.19",
+        "lodash": "4.17.21",
         "mocha": "3.2.0",
         "ngc-webpack": "1.2.0",
         "npm-run-all": "4.0.2",
@@ -1103,12 +1103,6 @@
         "node": "*"
       }
     },
-    "node_modules/async/node_modules/lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
-      "dev": true
-    },
     "node_modules/asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -9072,9 +9066,9 @@
       }
     },
     "node_modules/lodash": {
-      "version": "4.17.19",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "node_modules/lodash._arraycopy": {
@@ -18821,14 +18815,6 @@
       "dev": true,
       "requires": {
         "lodash": "^4.17.14"
-      },
-      "dependencies": {
-        "lodash": {
-          "version": "4.17.15",
-          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-          "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
-          "dev": true
-        }
       }
     },
     "async-each": {
@@ -25485,9 +25471,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.19",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.19.tgz",
-      "integrity": "sha512-JNvd8XER9GQX0v2qJgsaN/mzFCNA5BRe/j8JN9d+tWyGLSodKQHKFicdwNYzWwI3wjRnaKPsGj1XkBjx/F96DQ==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "lodash._arraycopy": {
diff --git a/package.json b/package.json
index 311612f..ea96354 100644
--- a/package.json
+++ b/package.json
@@ -179,7 +179,7 @@
     "less": "2.7.3",
     "less-loader": "4.0.5",
     "less-plugin-autoprefix": "1.5.1",
-    "lodash": "4.17.19",
+    "lodash": "4.17.21",
     "mocha": "3.2.0",
     "ngc-webpack": "1.2.0",
     "npm-run-all": "4.0.2",