diff --git a/packages/arb-token-bridge-ui/package.json b/packages/arb-token-bridge-ui/package.json
index b5b787b396..882adf8335 100644
--- a/packages/arb-token-bridge-ui/package.json
+++ b/packages/arb-token-bridge-ui/package.json
@@ -102,7 +102,7 @@
     "autoprefixer": "^10.4.13",
     "cypress-terminal-report": "^7.1.0",
     "env-cmd": "^10.1.0",
-    "happy-dom": "^17.4.4",
+    "happy-dom": "^20.0.2",
     "patch-package": "^8.0.0",
     "postcss": "^8.5.3",
     "postinstall-postinstall": "^2.1.0",
diff --git a/yarn.lock b/yarn.lock
index db96ee0dc3..223e227cb9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2155,9 +2155,9 @@
     viem "^2.24.3"
 
 "@lit-labs/ssr-dom-shim@^1.0.0", "@lit-labs/ssr-dom-shim@^1.1.0":
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/@lit-labs/ssr-dom-shim/-/ssr-dom-shim-1.3.0.tgz#a28799c463177d1a0b0e5cefdc173da5ac859eb4"
-  integrity sha512-nQIWonJ6eFAvUUrSlwyHDm/aE8PBDu5kRpL0vHMg6K8fK3Diq1xdPjTnsJSwxABhaZ+5eBi1btQB5ShUTKo4nQ==
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/@lit-labs/ssr-dom-shim/-/ssr-dom-shim-1.4.0.tgz#55eb80ab5ef6e188f7e541c1e2bea1ef582413b8"
+  integrity sha512-ficsEARKnmmW5njugNYKipTm4SFnbik7CXtoencDZzmzo/dQ+2Q0bgkzJuoJP20Aj0F+izzJjOqsnkd6F/o1bw==
 
 "@lit/reactive-element@^1.3.0", "@lit/reactive-element@^1.6.0":
   version "1.6.3"
@@ -3909,6 +3909,13 @@
   resolved "https://registry.npmjs.org/@types/node/-/node-16.18.103.tgz"
   integrity sha512-gOAcUSik1nR/CRC3BsK8kr6tbmNIOTpvb1sT+v5Nmmys+Ho8YtnIHP90wEsVK4hTcHndOqPVIlehEGEA5y31bA==
 
+"@types/node@^20.0.0":
+  version "20.19.21"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.19.21.tgz#6e5378e04993c40395473b13baf94a09875157b8"
+  integrity sha512-CsGG2P3I5y48RPMfprQGfy4JPRZ6csfC3ltBZSRItG3ngggmNY/qs2uZKp4p9VbrpqNNSMzUZNFZKzgOGnd/VA==
+  dependencies:
+    undici-types "~6.21.0"
+
 "@types/prop-types@*":
   version "15.7.5"
   resolved "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.5.tgz"
@@ -4076,6 +4083,11 @@
     anymatch "^3.0.0"
     source-map "^0.6.0"
 
+"@types/whatwg-mimetype@^3.0.2":
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/@types/whatwg-mimetype/-/whatwg-mimetype-3.0.2.tgz#e5e06dcd3e92d4e622ef0129637707d66c28d6a4"
+  integrity sha512-c2AKvDT8ToxLIOUlN51gTiHXflsfIFisS4pO7pDPoKouJCESkhZnEy623gwP9laCy5lnLDAw1vAzu2vM2YLOrA==
+
 "@types/ws@^7.4.4":
   version "7.4.7"
   resolved "https://registry.npmjs.org/@types/ws/-/ws-7.4.7.tgz"
@@ -9336,12 +9348,13 @@ handle-thing@^2.0.0:
   resolved "https://registry.npmjs.org/handle-thing/-/handle-thing-2.0.1.tgz"
   integrity sha512-9Qn4yBxelxoh2Ow62nP+Ka/kMnOXRi8BXnRaUwezLNhqelnN49xKz4F/dPP8OYLxLxq6JDtZb2i9XznUQbNPTg==
 
-happy-dom@^17.4.4:
-  version "17.4.4"
-  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-17.4.4.tgz#dea96fcc2f3dd2571d688b93dd853975270a623a"
-  integrity sha512-/Pb0ctk3HTZ5xEL3BZ0hK1AqDSAUuRQitOmROPHhfUYEWpmTImwfD8vFDGADmMAX0JYgbcgxWoLFKtsWhcpuVA==
+happy-dom@^20.0.2:
+  version "20.0.2"
+  resolved "https://registry.yarnpkg.com/happy-dom/-/happy-dom-20.0.2.tgz#da676a1e3d0742aff8ba4789db90445842538808"
+  integrity sha512-pYOyu624+6HDbY+qkjILpQGnpvZOusItCk+rvF5/V+6NkcgTKnbOldpIy22tBnxoaLtlM9nXgoqAcW29/B7CIw==
   dependencies:
-    webidl-conversions "^7.0.0"
+    "@types/node" "^20.0.0"
+    "@types/whatwg-mimetype" "^3.0.2"
     whatwg-mimetype "^3.0.0"
 
 has-bigints@^1.0.2:
@@ -14608,6 +14621,11 @@ undici-types@~6.19.2:
   resolved "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz"
   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==
+
 undici@^5.25.4:
   version "5.29.0"
   resolved "https://registry.yarnpkg.com/undici/-/undici-5.29.0.tgz#419595449ae3f2cdcba3580a2e8903399bd1f5a3"
@@ -15136,11 +15154,6 @@ webidl-conversions@^3.0.0:
   resolved "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-3.0.1.tgz"
   integrity sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==
 
-webidl-conversions@^7.0.0:
-  version "7.0.0"
-  resolved "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz"
-  integrity sha512-VwddBukDzu71offAQR975unBIGqfKZpM+8ZX6ySk8nYhVoo5CYaZyzt3YBvYtRtO+aoGlqxPg/B87NGVZ/fu6g==
-
 webpack-dev-middleware@^5.3.1:
   version "5.3.4"
   resolved "https://registry.npmjs.org/webpack-dev-middleware/-/webpack-dev-middleware-5.3.4.tgz"