diff --git a/html/package.json b/html/package.json
index 67b9755..4fbcc1f 100644
--- a/html/package.json
+++ b/html/package.json
@@ -58,7 +58,7 @@
     "webpack": "4.43.0",
     "webpack-cli": "^3.3.12",
     "webpack-dev-server": "^3.11.0",
-    "webpack-merge": "^4.2.2"
+    "webpack-merge": "^5.0.9"
   },
   "dependencies": {
     "backoff": "^2.5.0",
diff --git a/html/webpack.config.js b/html/webpack.config.js
index 8b0c506..0285d96 100644
--- a/html/webpack.config.js
+++ b/html/webpack.config.js
@@ -1,5 +1,5 @@
 const path = require('path');
-const merge = require('webpack-merge');
+const { merge } = require('webpack-merge');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 const MiniCssExtractPlugin = require("mini-css-extract-plugin");
diff --git a/html/yarn.lock b/html/yarn.lock
index 81e113d..1febf61 100644
--- a/html/yarn.lock
+++ b/html/yarn.lock
@@ -8381,12 +8381,13 @@ webpack-log@^2.0.0:
     ansi-colors "^3.0.0"
     uuid "^3.3.2"
 
-webpack-merge@^4.2.2:
-  version "4.2.2"
-  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-4.2.2.tgz#a27c52ea783d1398afd2087f547d7b9d2f43634d"
-  integrity sha512-TUE1UGoTX2Cd42j3krGYqObZbOD+xF7u28WB7tfUordytSjbWTIjK/8V0amkBfTYN4/pB/GIDlJZZ657BGG19g==
+webpack-merge@^5.0.9:
+  version "5.0.9"
+  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-5.0.9.tgz#d5e0e0ae564ae704836d747893bdd2741544bf31"
+  integrity sha512-P4teh6O26xIDPugOGX61wPxaeP918QOMjmzhu54zTVcLtOS28ffPWtnv+ilt3wscwBUCL2WNMnh97XkrKqt9Fw==
   dependencies:
-    lodash "^4.17.15"
+    clone-deep "^4.0.1"
+    wildcard "^2.0.0"
 
 webpack-sources@^1.1.0, webpack-sources@^1.4.0, webpack-sources@^1.4.1, webpack-sources@^1.4.3:
   version "1.4.3"
@@ -8494,6 +8495,11 @@ widest-line@^2.0.0:
   dependencies:
     string-width "^2.1.1"
 
+wildcard@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/wildcard/-/wildcard-2.0.0.tgz#a77d20e5200c6faaac979e4b3aadc7b3dd7f8fec"
+  integrity sha512-JcKqAHLPxcdb9KM49dufGXn2x3ssnfjbcaQdLlfZsL9rH9wgDQjUtDxbo8NE0F6SFvydeu1VhZe7hZuHsB2/pw==
+
 worker-farm@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.7.0.tgz#26a94c5391bbca926152002f69b84a4bf772e5a8"