diff --git a/package-lock.json b/package-lock.json
index c0bb2fe7..a3d016df 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -25,7 +25,7 @@
 				"jsdom": "^19.0.0",
 				"jsonc-parser": "^3.0.0",
 				"mocha": "^9.2.0",
-				"monaco-editor-core": "0.50.0-rc",
+				"monaco-editor-core": "0.51.0-dev-20240725",
 				"parcel": "^2.7.0",
 				"pin-github-action": "^1.8.0",
 				"playwright": "^1.32.2",
@@ -5394,9 +5394,9 @@
 			"dev": true
 		},
 		"node_modules/monaco-editor-core": {
-			"version": "0.50.0-rc",
-			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.50.0-rc.tgz",
-			"integrity": "sha512-DM/rRS4/dxWvHnszmSA81hpAhy8k5k1zE/aYc+lvH+4SxEJNsdHhindo8xM7VavawujvGhs+X3SPbi3ytl3rJQ==",
+			"version": "0.51.0-dev-20240725",
+			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.51.0-dev-20240725.tgz",
+			"integrity": "sha512-N/ukRZDRZ31CmVY9iUgmPnjT9kYXVEFhqc6I9/YWCAV8WpgArQXUB3iaMB0QnmQ08yo3D5XgsoHqf+komUj8nA==",
 			"dev": true
 		},
 		"node_modules/mri": {
@@ -11150,9 +11150,9 @@
 			}
 		},
 		"monaco-editor-core": {
-			"version": "0.50.0-rc",
-			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.50.0-rc.tgz",
-			"integrity": "sha512-DM/rRS4/dxWvHnszmSA81hpAhy8k5k1zE/aYc+lvH+4SxEJNsdHhindo8xM7VavawujvGhs+X3SPbi3ytl3rJQ==",
+			"version": "0.51.0-dev-20240725",
+			"resolved": "https://registry.npmjs.org/monaco-editor-core/-/monaco-editor-core-0.51.0-dev-20240725.tgz",
+			"integrity": "sha512-N/ukRZDRZ31CmVY9iUgmPnjT9kYXVEFhqc6I9/YWCAV8WpgArQXUB3iaMB0QnmQ08yo3D5XgsoHqf+komUj8nA==",
 			"dev": true
 		},
 		"mri": {
diff --git a/package.json b/package.json
index d02fab4e..a14480f1 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
 		"jsdom": "^19.0.0",
 		"jsonc-parser": "^3.0.0",
 		"mocha": "^9.2.0",
-		"monaco-editor-core": "0.50.0-rc",
+		"monaco-editor-core": "0.51.0-dev-20240725",
 		"parcel": "^2.7.0",
 		"pin-github-action": "^1.8.0",
 		"playwright": "^1.32.2",
diff --git a/test/unit/setup.js b/test/unit/setup.js
index f06bf323..1ea4ef48 100644
--- a/test/unit/setup.js
+++ b/test/unit/setup.js
@@ -21,6 +21,9 @@ define('vs/nls', [], {
 	localize: function () {
 		return 'NO_LOCALIZATION_FOR_YOU';
 	},
+	localize2: function (key, message) {
+		return { value: 'NO_LOCALIZATION_FOR_YOU', original: message };
+	},
 	load: function (name, req, load) {
 		load({});
 	}