diff --git a/html/package.json b/html/package.json
index d7ac660..9111be2 100644
--- a/html/package.json
+++ b/html/package.json
@@ -39,7 +39,7 @@
     "tslint": "^6.1.3",
     "tslint-loader": "^3.5.4",
     "typescript": "^4.2.4",
-    "util": "^0.12.3",
+    "util": "^0.12.4",
     "webpack": "^5.36.2",
     "webpack-cli": "^4.7.0",
     "webpack-dev-server": "^3.11.2",
diff --git a/html/yarn.lock b/html/yarn.lock
index 221a46f..a34f1e7 100644
--- a/html/yarn.lock
+++ b/html/yarn.lock
@@ -7300,10 +7300,10 @@ util.promisify@~1.0.0:
     has-symbols "^1.0.1"
     object.getownpropertydescriptors "^2.1.0"
 
-util@^0.12.3:
-  version "0.12.3"
-  resolved "https://registry.yarnpkg.com/util/-/util-0.12.3.tgz#971bb0292d2cc0c892dab7c6a5d37c2bec707888"
-  integrity sha512-I8XkoQwE+fPQEhy9v012V+TSdH2kp9ts29i20TaaDUXsg7x/onePbhFJUExBfv/2ay1ZOp/Vsm3nDlmnFGSAog==
+util@^0.12.4:
+  version "0.12.4"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.12.4.tgz#66121a31420df8f01ca0c464be15dfa1d1850253"
+  integrity sha512-bxZ9qtSlGUWSOy9Qa9Xgk11kSslpuZwaxCg4sNIDj6FLucDab2JxnHwyNTCpHMtK1MjoQiWQ6DiUMZYbSrO+Sw==
   dependencies:
     inherits "^2.0.3"
     is-arguments "^1.0.4"