diff --git a/demos/npm/package-lock.json b/demos/npm/package-lock.json
index 969adc5..21c1924 100644
--- a/demos/npm/package-lock.json
+++ b/demos/npm/package-lock.json
@@ -10,7 +10,7 @@
       "license": "Apache-2.0",
       "dependencies": {
         "commander": "2.20.1",
-        "lodash": "4.10.0"
+        "lodash": "4.17.21"
       }
     },
     "node_modules/commander": {
@@ -19,9 +19,9 @@
       "integrity": "sha512-cCuLsMhJeWQ/ZpsFTbE765kvVfoeSddc4nU3up4fV+fDBcfUXnbITJ+JzhkdjzOqhURjZgujxaioam4RM9yGUg=="
     },
     "node_modules/lodash": {
-      "version": "4.10.0",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.10.0.tgz",
-      "integrity": "sha512-uDkT/I1Y2X0gvxCdeosY9/XImqohEKRrvj/NLXA7H1NKWdu61lHnrIHiQPNlvIXCzsbnBqwdheW0AbKMxMQF+Q=="
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
     }
   }
 }
diff --git a/demos/npm/package.json b/demos/npm/package.json
index c826b47..716dc5e 100644
--- a/demos/npm/package.json
+++ b/demos/npm/package.json
@@ -6,6 +6,6 @@
   "license": "Apache-2.0",
   "dependencies": {
     "commander": "2.20.1",
-    "lodash": "4.10.0"
+    "lodash": "4.17.21"
   }
 }