diff --git a/ui/package.json b/ui/package.json
index 42e27a5c8..64f4f6ca1 100644
--- a/ui/package.json
+++ b/ui/package.json
@@ -63,7 +63,7 @@
     "eslint-plugin-prettier": "5.5.4",
     "eslint-plugin-react": "7.37.5",
     "globals": "16.4.0",
-    "happy-dom": "18.0.1",
+    "happy-dom": "20.8.9",
     "husky": "9.1.7",
     "lint-staged": "16.2.0",
     "monaco-editor": "0.53.0",
diff --git a/ui/yarn.lock b/ui/yarn.lock
index 2f74b885c..2eb9b11d9 100644
--- a/ui/yarn.lock
+++ b/ui/yarn.lock
@@ -2099,12 +2099,12 @@
   dependencies:
     undici-types "~6.19.2"
 
-"@types/node@^20.0.0":
-  version "20.19.9"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.19.9.tgz#ca9a58193fec361cc6e859d88b52261853f1f0d3"
-  integrity sha512-cuVNgarYWZqxRJDQHEB58GEONhOK79QVR/qYx4S7kcUObQvUwvFnYxJuuHUKm2aieN9X3yZB4LZsuYNU1Qphsw==
+"@types/node@>=20.0.0":
+  version "25.9.3"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-25.9.3.tgz#11dfe7a33e68fa5c560f0aa76cc5595621ef26b9"
+  integrity sha512-603BddQMv3pUcr4U2dhujk83N2tTDVr/34wII2B6bJy6g+8WD6yUb11jszNs0gdi4PesVWl7ABt8nYMVpnLUcg==
   dependencies:
-    undici-types "~6.21.0"
+    undici-types ">=7.24.0 <7.24.7"
 
 "@types/prop-types@*":
   version "15.7.9"
@@ -2184,6 +2184,13 @@
   resolved "https://registry.yarnpkg.com/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz#e5e06dcd3e92d4e622ef0129637707d66c28d6a4"
   integrity sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==
 
+"@types/ws@^8.18.1":
+  version "8.18.1"
+  resolved "https://registry.yarnpkg.com/@types/ws/-/ws-8.18.1.tgz#48464e4bf2ddfd17db13d845467f6070ffea4aa9"
+  integrity sha512-ThVF6DCVhA8kUGy+aazFQ4kXQ7E1Ty7A3ypFOe0IcJV8O/M511G99AW24irKrW56Wt44yG9+ij8FaqoBGkuBXg==
+  dependencies:
+    "@types/node" "*"
+
 "@types/yargs-parser@*":
   version "21.0.3"
   resolved "https://registry.yarnpkg.com/@types/yargs-parser/-/yargs-parser-21.0.3.tgz#815e30b786d2e8f0dcd85fd5bcf5e1a04d008f15"
@@ -3714,6 +3721,11 @@ entities@^4.4.0:
   resolved "https://registry.yarnpkg.com/entities/-/entities-4.5.0.tgz#5d268ea5e7113ec74c4d033b79ea5a35a488fb48"
   integrity sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==
 
+entities@^7.0.1:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-7.0.1.tgz#26e8a88889db63417dcb9a1e79a3f1bc92b5976b"
+  integrity sha512-TWrgLOFUQTH994YUyl1yT4uyavY5nNB5muff+RtWaqNVCAK408b5ZnnbNAUEWLTCpum9w6arT70i1XdQ4UeOPA==
+
 env-paths@^2.2.1:
   version "2.2.1"
   resolved "https://registry.yarnpkg.com/env-paths/-/env-paths-2.2.1.tgz#420399d416ce1fbe9bc0a07c62fa68d67fd0f8f2"
@@ -4770,14 +4782,17 @@ graphemer@^1.4.0:
   resolved "https://registry.yarnpkg.com/graphemer/-/graphemer-1.4.0.tgz#fb2f1d55e0e3a1849aeffc90c4fa0dd53a0e66c6"
   integrity sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==
 
-happy-dom@18.0.1:
-  version "18.0.1"
-  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-18.0.1.tgz#8f8a2199462842deb675f54e405af55f3b674540"
-  integrity sha512-qn+rKOW7KWpVTtgIUi6RVmTBZJSe2k0Db0vh1f7CWrWclkkc7/Q+FrOfkZIb2eiErLyqu5AXEzE7XthO9JVxRA==
+happy-dom@20.8.9:
+  version "20.8.9"
+  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-20.8.9.tgz#aeacc9ab9aacada379bce0ba37b2f02dabbba286"
+  integrity sha512-Tz23LR9T9jOGVZm2x1EPdXqwA37G/owYMxRwU0E4miurAtFsPMQ1d2Jc2okUaSjZqAFz2oEn3FLXC5a0a+siyA==
   dependencies:
-    "@types/node" "^20.0.0"
+    "@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"
 
 has-ansi@^2.0.0:
   version "2.0.0"
@@ -7927,6 +7942,11 @@ unbox-primitive@^1.1.0:
     has-symbols "^1.1.0"
     which-boxed-primitive "^1.1.1"
 
+"undici-types@>=7.24.0 <7.24.7":
+  version "7.24.6"
+  resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-7.24.6.tgz#61275b485d7fd4e9d269c7cf04ec2873c9cc0f91"
+  integrity sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==
+
 undici-types@~5.26.4:
   version "5.26.5"
   resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-5.26.5.tgz#bcd539893d00b56e964fd2657a4866b221a65617"
@@ -7937,11 +7957,6 @@ undici-types@~6.19.2:
   resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-6.19.8.tgz#35111c9d1437ab83a7cdc0abae2f26d88eda0a02"
   integrity sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==
 
-undici-types@~6.21.0:
-  version "6.21.0"
-  resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-6.21.0.tgz#691d00af3909be93a7faa13be61b3a5b50ef12cb"
-  integrity sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==
-
 unicode-canonical-property-names-ecmascript@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-2.0.0.tgz#301acdc525631670d39f6146e0e77ff6bbdebddc"
@@ -8311,6 +8326,11 @@ ws@^8.11.0:
   resolved "https://registry.yarnpkg.com/ws/-/ws-8.16.0.tgz#d1cd774f36fbc07165066a60e40323eab6446fd4"
   integrity sha512-HS0c//TP7Ina87TfiPUz1rQzMhHrl/SG2guqRcTOIUYD2q8uhUdNHZYJUaQ8aTGPzCh+c6oawMKW35nFl1dxyQ==
 
+ws@^8.18.3:
+  version "8.21.0"
+  resolved "https://registry.yarnpkg.com/ws/-/ws-8.21.0.tgz#012e413fc07429945121b0c153158c4343086951"
+  integrity sha512-Vsp28b7DRcimFQvrqu2Wek3z1iYxDCWqHYB8Qsnk/S4RfaCQzPGPyBNuVjJV3cd6UiKtUtp6sNM77gWvzcCH+g==
+
 xml-name-validator@^4.0.0:
   version "4.0.0"
   resolved "https://registry.yarnpkg.com/xml-name-validator/-/xml-name-validator-4.0.0.tgz#79a006e2e63149a8600f15430f0a4725d1524835"