diff --git a/package-lock.json b/package-lock.json
index ab4c80b..76ec1a3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4239,9 +4239,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.13",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.13.tgz",
-      "integrity": "sha512-vm3/XWXfWtRua0FkUyEHBZy8kCPjErNBT9fJx8Zvs+U6zjqPbTUOpkaoum3O5uiA8sm+yNMHXfYkTUHFoMxFNA=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     },
     "lodash._isnative": {
       "version": "2.4.1",
diff --git a/package.json b/package.json
index a0a7845..154fda0 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "firebase": "^5.9.0",
     "firebase-tools": "^6.5.0",
     "jailed-node": "git://github.com:adrienjoly/jailed-node.git#v0.5.0",
-    "lodash": "^4.17.13",
+    "lodash": "^4.17.21",
     "mustache": "^2.2.1",
     "node-static": "^0.7.9",
     "readline": "^1.3.0",