diff --git a/package-lock.json b/package-lock.json
index a023418..5b35824 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -235,9 +235,9 @@
       }
     },
     "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=="
     },
     "minimatch": {
       "version": "3.0.4",
diff --git a/package.json b/package.json
index dec0a52..8095abc 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "tslint": "^5.12.1"
   },
   "dependencies": {
-    "lodash": "^4.17.11",
+    "lodash": "^4.17.21",
     "sequential-event": "^0.4.5"
   }
 }