diff --git a/package-lock.json b/package-lock.json
index be835b9..7ac1564 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -34,7 +34,7 @@
         "@types/react-dom": "18.2.7",
         "@vitejs/plugin-react": "^4.0.4",
         "c8": "^8.0.1",
-        "happy-dom": "^15.10.2",
+        "happy-dom": "^20.8.9",
         "sass": "^1.66.1",
         "typescript": "5.1.6",
         "vite": "^7.3.2",
@@ -3660,6 +3660,23 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/whatwg-mimetype": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz",
+      "integrity": "sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==",
+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@types/ws": {
+      "version": "8.18.1",
+      "resolved": "https://registry.npmjs.org/@types/ws/-/ws-8.18.1.tgz",
+      "integrity": "sha512-ThVF6DCVhA8kUGy+aazFQ4kXQ7E1Ty7A3ypFOe0IcJV8O/M511G99AW24irKrW56Wt44yG9+ij8FaqoBGkuBXg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@typescript-eslint/eslint-plugin": {
       "version": "6.4.1",
       "resolved": "https://registry.npmjs.org/@typescript-eslint/eslint-plugin/-/eslint-plugin-6.4.1.tgz",
@@ -7756,17 +7773,34 @@
       }
     },
     "node_modules/happy-dom": {
-      "version": "15.10.2",
-      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-15.10.2.tgz",
-      "integrity": "sha512-NbA5XrSovenJIIcfixCREX3ZnV7yHP4phhbfuxxf4CPn+LZpz/jIM9EqJ2DrPwgVDSMoAKH3pZwQvkbsSiCrUw==",
+      "version": "20.8.9",
+      "resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.8.9.tgz",
+      "integrity": "sha512-Tz23LR9T9jOGVZm2x1EPdXqwA37G/owYMxRwU0E4miurAtFsPMQ1d2Jc2okUaSjZqAFz2oEn3FLXC5a0a+siyA==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "entities": "^4.5.0",
-        "webidl-conversions": "^7.0.0",
-        "whatwg-mimetype": "^3.0.0"
+        "@types/node": ">=20.0.0",
+        "@types/whatwg-mimetype": "^3.0.2",
+        "@types/ws": "^8.18.1",
+        "entities": "^7.0.1",
+        "whatwg-mimetype": "^3.0.0",
+        "ws": "^8.18.3"
       },
       "engines": {
-        "node": ">=18.0.0"
+        "node": ">=20.0.0"
+      }
+    },
+    "node_modules/happy-dom/node_modules/entities": {
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/entities/-/entities-7.0.1.tgz",
+      "integrity": "sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==",
+      "dev": true,
+      "license": "BSD-2-Clause",
+      "engines": {
+        "node": ">=0.12"
+      },
+      "funding": {
+        "url": "https://github.com/fb55/entities?sponsor=1"
       }
     },
     "node_modules/har-schema": {
@@ -15639,14 +15673,6 @@
         "defaults": "^1.0.3"
       }
     },
-    "node_modules/webidl-conversions": {
-      "version": "7.0.0",
-      "dev": true,
-      "license": "BSD-2-Clause",
-      "engines": {
-        "node": ">=12"
-      }
-    },
     "node_modules/whatwg-mimetype": {
       "version": "3.0.0",
       "dev": true,
@@ -16057,6 +16083,28 @@
       "version": "1.0.2",
       "license": "ISC"
     },
+    "node_modules/ws": {
+      "version": "8.20.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.0.tgz",
+      "integrity": "sha512-sAt8BhgNbzCtgGbt2OxmpuryO63ZoDk/sqaB/znQm94T4fCEsy/yV+7CdC1kJhOU9lboAEU7R3kquuycDoibVA==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/xml2js": {
       "version": "0.5.0",
       "license": "MIT",
diff --git a/package.json b/package.json
index 28538b6..5598a0f 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "@types/react-dom": "18.2.7",
     "@vitejs/plugin-react": "^4.0.4",
     "c8": "^8.0.1",
-    "happy-dom": "^15.10.2",
+    "happy-dom": "^20.8.9",
     "sass": "^1.66.1",
     "typescript": "5.1.6",
     "vite": "^7.3.2",