diff --git a/src/Umbraco.Web.UI.Client/package-lock.json b/src/Umbraco.Web.UI.Client/package-lock.json
index f48184b165..000afd6576 100644
--- a/src/Umbraco.Web.UI.Client/package-lock.json
+++ b/src/Umbraco.Web.UI.Client/package-lock.json
@@ -60,7 +60,7 @@
 				"@storybook/addon-links": "^8.3.5",
 				"@storybook/web-components": "^8.3.5",
 				"@storybook/web-components-vite": "^8.3.5",
-				"@types/chai": "^4.3.16",
+				"@types/chai": "^5.0.0",
 				"@types/eslint__js": "^8.42.3",
 				"@types/mocha": "^10.0.7",
 				"@web/dev-server-esbuild": "^1.0.2",
@@ -948,6 +948,12 @@
 				"@types/chai": "^4.2.12"
 			}
 		},
+		"node_modules/@esm-bundle/chai/node_modules/@types/chai": {
+			"version": "4.3.20",
+			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.20.tgz",
+			"integrity": "sha512-/pC9HAB5I/xMlc5FP77qjCnI16ChlJfW0tGa0IUcFn38VJrTV6DeZ60NU5KZBtaOZqjdpwTWohz5HU1RrhiYxQ==",
+			"dev": true
+		},
 		"node_modules/@hapi/bourne": {
 			"version": "3.0.0",
 			"resolved": "https://registry.npmjs.org/@hapi/bourne/-/bourne-3.0.0.tgz",
@@ -1272,6 +1278,12 @@
 				"@web/test-runner-commands": "^0.9.0"
 			}
 		},
+		"node_modules/@open-wc/semantic-dom-diff/node_modules/@types/chai": {
+			"version": "4.3.20",
+			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.20.tgz",
+			"integrity": "sha512-/pC9HAB5I/xMlc5FP77qjCnI16ChlJfW0tGa0IUcFn38VJrTV6DeZ60NU5KZBtaOZqjdpwTWohz5HU1RrhiYxQ==",
+			"dev": true
+		},
 		"node_modules/@open-wc/testing": {
 			"version": "4.0.0",
 			"resolved": "https://registry.npmjs.org/@open-wc/testing/-/testing-4.0.0.tgz",
@@ -2894,9 +2906,9 @@
 			}
 		},
 		"node_modules/@types/chai": {
-			"version": "4.3.17",
-			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-4.3.17.tgz",
-			"integrity": "sha512-zmZ21EWzR71B4Sscphjief5djsLre50M6lI622OSySTmn9DB3j+C3kWroHfBQWXbOBwbgg/M8CG/hUxDLIloow==",
+			"version": "5.0.0",
+			"resolved": "https://registry.npmjs.org/@types/chai/-/chai-5.0.0.tgz",
+			"integrity": "sha512-+DwhEHAaFPPdJ2ral3kNHFQXnTfscEEFsUxzD+d7nlcLrFK23JtNjH71RGasTcHb88b4vVi4mTyfpf8u2L8bdA==",
 			"dev": true
 		},
 		"node_modules/@types/chai-dom": {
diff --git a/src/Umbraco.Web.UI.Client/package.json b/src/Umbraco.Web.UI.Client/package.json
index abe758b49a..da9c8e599c 100644
--- a/src/Umbraco.Web.UI.Client/package.json
+++ b/src/Umbraco.Web.UI.Client/package.json
@@ -245,7 +245,7 @@
 		"@storybook/addon-links": "^8.3.5",
 		"@storybook/web-components": "^8.3.5",
 		"@storybook/web-components-vite": "^8.3.5",
-		"@types/chai": "^4.3.16",
+		"@types/chai": "^5.0.0",
 		"@types/eslint__js": "^8.42.3",
 		"@types/mocha": "^10.0.7",
 		"@web/dev-server-esbuild": "^1.0.2",