diff --git a/package-lock.json b/package-lock.json
index 9d50853..4bd45c2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -24,6 +24,7 @@
     "": {
       "name": "wicg-inert",
       "version": "3.1.2",
+      "license": "W3C-20150513",
       "devDependencies": {
         "babel-core": "^6.26.3",
         "babel-preset-env": "^1.6.1",
@@ -2378,9 +2379,9 @@
       }
     },
     "node_modules/engine.io": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.0.tgz",
-      "integrity": "sha512-4KzwW3F3bk+KlzSOY57fj/Jx6LyRQ1nbcyIadehl+AnXjKT7gDO0ORdRi/84ixvMKTym6ZKuxvbzN62HDDU1Lg==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.1.tgz",
+      "integrity": "sha512-ECceEFcAaNRybd3lsGQKas3ZlMVjN3cyWwMP25D2i0zWfyiytVbTpRPa34qrr+FHddtpBVOmq4H/DCv1O0lZRA==",
       "dev": true,
       "dependencies": {
         "@types/cookie": "^0.4.1",
@@ -9980,9 +9981,9 @@
       }
     },
     "engine.io": {
-      "version": "6.2.0",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.0.tgz",
-      "integrity": "sha512-4KzwW3F3bk+KlzSOY57fj/Jx6LyRQ1nbcyIadehl+AnXjKT7gDO0ORdRi/84ixvMKTym6ZKuxvbzN62HDDU1Lg==",
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.2.1.tgz",
+      "integrity": "sha512-ECceEFcAaNRybd3lsGQKas3ZlMVjN3cyWwMP25D2i0zWfyiytVbTpRPa34qrr+FHddtpBVOmq4H/DCv1O0lZRA==",
       "dev": true,
       "requires": {
         "@types/cookie": "^0.4.1",