diff --git a/package-lock.json b/package-lock.json
index a646e6c2..7e99facc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
 				"jsdom": "^19.0.0",
 				"jsonc-parser": "^3.0.0",
 				"mocha": "^9.2.0",
-				"monaco-editor-core": "0.35.0-dev.20221018.2",
+				"monaco-editor-core": "0.35.0-dev.20221208",
 				"parcel": "^2.7.0",
 				"playwright": "^1.18.1",
 				"prettier": "^2.5.1",
@@ -4519,9 +4519,9 @@
 			"dev": true
 		},
 		"node_modules/monaco-editor-core": {
-			"version": "0.35.0-dev.20221018.2",
-			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.35.0-dev.20221018.2.tgz",
-			"integrity": "sha512-RHx0zCV7y7WZHL6o4AWDd+SlXaXOegWVcg+tDxnyCrttqGfyh8q2Lwdx6Js+hKdCM2MFiiOkJoROMPQqiDIhbQ==",
+			"version": "0.35.0-dev.20221208",
+			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.35.0-dev.20221208.tgz",
+			"integrity": "sha512-XQpKe+FoGoIWDqn/xiz5+Iyi1PrVWArlrBqqkQuWu4IBjUvs7/krZLqnsy/Vfoflu9Ldtoc1JU9wNu0tyDv66A==",
 			"dev": true
 		},
 		"node_modules/mri": {
@@ -9999,9 +9999,9 @@
 			}
 		},
 		"monaco-editor-core": {
-			"version": "0.35.0-dev.20221018.2",
-			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.35.0-dev.20221018.2.tgz",
-			"integrity": "sha512-RHx0zCV7y7WZHL6o4AWDd+SlXaXOegWVcg+tDxnyCrttqGfyh8q2Lwdx6Js+hKdCM2MFiiOkJoROMPQqiDIhbQ==",
+			"version": "0.35.0-dev.20221208",
+			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.35.0-dev.20221208.tgz",
+			"integrity": "sha512-XQpKe+FoGoIWDqn/xiz5+Iyi1PrVWArlrBqqkQuWu4IBjUvs7/krZLqnsy/Vfoflu9Ldtoc1JU9wNu0tyDv66A==",
 			"dev": true
 		},
 		"mri": {
diff --git a/package.json b/package.json
index fde0e2f3..23039443 100644
--- a/package.json
+++ b/package.json
@@ -49,7 +49,7 @@
 		"jsdom": "^19.0.0",
 		"jsonc-parser": "^3.0.0",
 		"mocha": "^9.2.0",
-		"monaco-editor-core": "0.35.0-dev.20221018.2",
+		"monaco-editor-core": "0.35.0-dev.20221208",
 		"parcel": "^2.7.0",
 		"playwright": "^1.18.1",
 		"prettier": "^2.5.1",
diff --git a/test/unit/all.js b/test/unit/all.js
index 4314e146..00cc27a2 100644
--- a/test/unit/all.js
+++ b/test/unit/all.js
@@ -21,6 +21,7 @@ global.self = global;
 global.document.queryCommandSupported = function () {
 	return false;
 };
+global.UIEvent = tmp.window.UIEvent;
 
 global.window = {
 	location: {},