diff --git a/rest-spec/package-lock.json b/rest-spec/package-lock.json
index c8f8dba3..79a14f21 100644
--- a/rest-spec/package-lock.json
+++ b/rest-spec/package-lock.json
@@ -929,9 +929,9 @@
       }
     },
     "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
     },
     "loud-rejection": {
diff --git a/rest-spec/package.json b/rest-spec/package.json
index 6328469f..8a7ca285 100644
--- a/rest-spec/package.json
+++ b/rest-spec/package.json
@@ -13,7 +13,7 @@
     "grunt-publish": "^1.0.0",
     "grunt-shell": "^3.0.1",
     "load-grunt-tasks": "^4.0.0",
-    "lodash": "^4.17.11",
+    "lodash": "^4.17.21",
     "rimraf": "^2.6.3"
   }
 }