diff --git a/content/js/construct-vnm-utility-function/package-lock.json b/content/js/construct-vnm-utility-function/package-lock.json
index 20441dfa..3374aa6f 100644
--- a/content/js/construct-vnm-utility-function/package-lock.json
+++ b/content/js/construct-vnm-utility-function/package-lock.json
@@ -756,9 +756,9 @@
       }
     },
     "vega-util": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/vega-util/-/vega-util-1.7.0.tgz",
-      "integrity": "sha512-IlmYqW0t3UP8AJX4QuOOm5cMPKPOUa8fSTcCvNkfVOR5zvMNFKCVhoZmJSXgcbEhkfboB+ysI2aaWOeW2kKBog=="
+      "version": "1.16.1",
+      "resolved": "https://registry.npmjs.org/vega-util/-/vega-util-1.16.1.tgz",
+      "integrity": "sha512-FdgD72fmZMPJE99FxvFXth0IL4BbLA93WmBg/lvcJmfkK4Uf90WIlvGwaIUdSePIsdpkZjBPyQcHMQ8OcS8Smg=="
     },
     "vega-view": {
       "version": "3.4.0",
@@ -853,7 +853,7 @@
         },
         "strip-ansi": {
           "version": "3.0.1",
-          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "requires": {
             "ansi-regex": "^2.0.0"