diff --git a/demo/package-lock.json b/demo/package-lock.json
index 14462d6..e85a750 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -311,12 +311,6 @@
                 "concat-map": "0.0.1"
               }
             },
-            "chownr": {
-              "version": "1.1.1",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            },
             "code-point-at": {
               "version": "1.1.0",
               "bundled": true,
@@ -2103,9 +2097,9 @@
       }
     },
     "chownr": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.0.1.tgz",
-      "integrity": "sha1-4qdQQqlVGQi+vSW4Uj1fl2nXkYE=",
+      "version": "1.1.4",
+      "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
+      "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==",
       "dev": true
     },
     "chrome-trace-event": {
@@ -3973,12 +3967,6 @@
                 "concat-map": "0.0.1"
               }
             },
-            "chownr": {
-              "version": "1.1.1",
-              "bundled": true,
-              "dev": true,
-              "optional": true
-            },
             "code-point-at": {
               "version": "1.1.0",
               "bundled": true,
@@ -10936,12 +10924,6 @@
             "y18n": "^4.0.0"
           }
         },
-        "chownr": {
-          "version": "1.1.2",
-          "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.2.tgz",
-          "integrity": "sha512-GkfeAQh+QNy3wquu9oIZr6SS5x7wGdSgNQvD10X3r+AZr1Oys22HW8kAmDMvNg2+Dm0TeGaEuO8gFwdBXxwO8A==",
-          "dev": true
-        },
         "fast-deep-equal": {
           "version": "2.0.1",
           "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",