diff --git a/webapp/package-lock.json b/webapp/package-lock.json
index 6fe41fdd..810cb70c 100644
--- a/webapp/package-lock.json
+++ b/webapp/package-lock.json
@@ -41,7 +41,7 @@
 				"@vitest/coverage-v8": "^3.2.4",
 				"@vitest/ui": "^3.2.4",
 				"autoprefixer": "^10.4.16",
-				"happy-dom": "^20.0.2",
+				"happy-dom": "^20.8.9",
 				"jsdom": "^26.1.0",
 				"postcss": "^8.4.32",
 				"svelte": "^5.53.6",
@@ -2517,6 +2517,16 @@
 			"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/@vitest/coverage-v8": {
 			"version": "3.2.4",
 			"resolved": "https://registry.npmjs.org/@vitest/coverage-v8/-/coverage-v8-3.2.4.tgz",
@@ -4155,37 +4165,36 @@
 			"license": "ISC"
 		},
 		"node_modules/happy-dom": {
-			"version": "20.0.2",
-			"resolved": "https://registry.npmjs.org/happy-dom/-/happy-dom-20.0.2.tgz",
-			"integrity": "sha512-pYOyu624+6HDbY+qkjILpQGnpvZOusItCk+rvF5/V+6NkcgTKnbOldpIy22tBnxoaLtlM9nXgoqAcW29/B7CIw==",
+			"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": {
-				"@types/node": "^20.0.0",
+				"@types/node": ">=20.0.0",
 				"@types/whatwg-mimetype": "^3.0.2",
-				"whatwg-mimetype": "^3.0.0"
+				"@types/ws": "^8.18.1",
+				"entities": "^7.0.1",
+				"whatwg-mimetype": "^3.0.0",
+				"ws": "^8.18.3"
 			},
 			"engines": {
 				"node": ">=20.0.0"
 			}
 		},
-		"node_modules/happy-dom/node_modules/@types/node": {
-			"version": "20.19.11",
-			"resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.11.tgz",
-			"integrity": "sha512-uug3FEEGv0r+jrecvUUpbY8lLisvIjg6AAic6a2bSP5OEOLeJsDSnvhCDov7ipFFMXS3orMpzlmi0ZcuGkBbow==",
+		"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": "MIT",
-			"dependencies": {
-				"undici-types": "~6.21.0"
+			"license": "BSD-2-Clause",
+			"engines": {
+				"node": ">=0.12"
+			},
+			"funding": {
+				"url": "https://github.com/fb55/entities?sponsor=1"
 			}
 		},
-		"node_modules/happy-dom/node_modules/undici-types": {
-			"version": "6.21.0",
-			"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-			"integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
-			"dev": true,
-			"license": "MIT"
-		},
 		"node_modules/happy-dom/node_modules/whatwg-mimetype": {
 			"version": "3.0.0",
 			"resolved": "https://registry.npmjs.org/whatwg-mimetype/-/whatwg-mimetype-3.0.0.tgz",
diff --git a/webapp/package.json b/webapp/package.json
index 856cfe51..4b5de2af 100644
--- a/webapp/package.json
+++ b/webapp/package.json
@@ -27,7 +27,7 @@
 		"@vitest/coverage-v8": "^3.2.4",
 		"@vitest/ui": "^3.2.4",
 		"autoprefixer": "^10.4.16",
-		"happy-dom": "^20.0.2",
+		"happy-dom": "^20.8.9",
 		"jsdom": "^26.1.0",
 		"postcss": "^8.4.32",
 		"svelte": "^5.53.6",