diff --git a/package-lock.json b/package-lock.json
index 0607ead..e9070f2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1233,9 +1233,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "lodash.assign": {
diff --git a/package.json b/package.json
index 1e375ca..c3e8341 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "jasmine-reporters": "2.3.2",
     "jasmine-spec-reporter": "4.2.1",
     "jasmine-ts": "0.3.0",
-    "lodash": "4.17.11",
+    "lodash": "4.17.21",
     "nyc": "14.1.0",
     "ts-node": "7.0.1",
     "tslint": "5.12.1",