diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 00000000..3c58ccd1
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,2 @@
+/out/
+/release/
diff --git a/package-lock.json b/package-lock.json
index d038e243..dc01124a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -714,47 +714,47 @@
 			"dev": true
 		},
 		"vscode-css-languageservice": {
-			"version": "4.0.3-next.25",
-			"resolved": "https://registry.npmjs.org/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.25.tgz",
-			"integrity": "sha512-c6qoSiYUJUDYizqQRZw5tb7n3IjCgGeFg74aWV0IsihrLWKPmMwDdRDzIDohWwlOf5myrEvuHmbPo7wTaspG+w==",
+			"version": "4.3.3",
+			"resolved": "https://registry.npmjs.org/vscode-css-languageservice/-/vscode-css-languageservice-4.3.3.tgz",
+			"integrity": "sha512-b2b+0oHvPmBHygDtOXX3xBvpQCa6eIQSvXnGDNSDmIC1894ZTJ2yX10vjplOO/PvV7mwhyvGPwHyY4X2HGxtKw==",
 			"dev": true,
 			"requires": {
-				"vscode-languageserver-textdocument": "^1.0.0-next.4",
-				"vscode-languageserver-types": "^3.15.0-next.6",
-				"vscode-nls": "^4.1.1",
-				"vscode-uri": "^2.1.1"
+				"vscode-languageserver-textdocument": "^1.0.1",
+				"vscode-languageserver-types": "3.16.0-next.2",
+				"vscode-nls": "^4.1.2",
+				"vscode-uri": "^2.1.2"
 			},
 			"dependencies": {
-				"vscode-languageserver-textdocument": {
-					"version": "1.0.0-next.5",
-					"resolved": "https://registry.npmjs.org/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.0-next.5.tgz",
-					"integrity": "sha512-1jp/zAidN/bF/sqPimhBX1orH5G4rzRw63k75TesukJDuxm8yW79ECStWbDSy41BHGOwSGN4M69QFvhancSr5A==",
+				"vscode-languageserver-types": {
+					"version": "3.16.0-next.2",
+					"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.16.0-next.2.tgz",
+					"integrity": "sha512-QjXB7CKIfFzKbiCJC4OWC8xUncLsxo19FzGVp/ADFvvi87PlmBSCAtZI5xwGjF5qE0xkLf0jjKUn3DzmpDP52Q==",
 					"dev": true
 				}
 			}
 		},
 		"vscode-languageserver-textdocument": {
-			"version": "1.0.0-next.5",
-			"resolved": "https://registry.npmjs.org/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.0-next.5.tgz",
-			"integrity": "sha512-1jp/zAidN/bF/sqPimhBX1orH5G4rzRw63k75TesukJDuxm8yW79ECStWbDSy41BHGOwSGN4M69QFvhancSr5A==",
+			"version": "1.0.1",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-textdocument/-/vscode-languageserver-textdocument-1.0.1.tgz",
+			"integrity": "sha512-UIcJDjX7IFkck7cSkNNyzIz5FyvpQfY7sdzVy+wkKN/BLaD4DQ0ppXQrKePomCxTS7RrolK1I0pey0bG9eh8dA==",
 			"dev": true
 		},
 		"vscode-languageserver-types": {
-			"version": "3.15.0-next.9",
-			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.15.0-next.9.tgz",
-			"integrity": "sha512-Rl/8qJ6932nrHCdPn+9y0x08uLVQaSLRG+U4JzhyKpWU4eJbVaDRoAcz1Llj7CErJGbPr6kdBvShPy5fRfR+Uw==",
+			"version": "3.15.1",
+			"resolved": "https://registry.npmjs.org/vscode-languageserver-types/-/vscode-languageserver-types-3.15.1.tgz",
+			"integrity": "sha512-+a9MPUQrNGRrGU630OGbYVQ+11iOIovjCkqxajPa9w57Sd5ruK8WQNsslzpa0x/QJqC8kRc2DUxWjIFwoNm4ZQ==",
 			"dev": true
 		},
 		"vscode-nls": {
-			"version": "4.1.1",
-			"resolved": "https://registry.npmjs.org/vscode-nls/-/vscode-nls-4.1.1.tgz",
-			"integrity": "sha512-4R+2UoUUU/LdnMnFjePxfLqNhBS8lrAFyX7pjb2ud/lqDkrUavFUTcG7wR0HBZFakae0Q6KLBFjMS6W93F403A==",
+			"version": "4.1.2",
+			"resolved": "https://registry.npmjs.org/vscode-nls/-/vscode-nls-4.1.2.tgz",
+			"integrity": "sha512-7bOHxPsfyuCqmP+hZXscLhiHwe7CSuFE4hyhbs22xPIhQ4jv99FcR4eBzfYYVLP356HNFpdvz63FFb/xw6T4Iw==",
 			"dev": true
 		},
 		"vscode-uri": {
-			"version": "2.1.1",
-			"resolved": "https://registry.npmjs.org/vscode-uri/-/vscode-uri-2.1.1.tgz",
-			"integrity": "sha512-eY9jmGoEnVf8VE8xr5znSah7Qt1P/xsCdErz+g8HYZtJ7bZqKH5E3d+6oVNm1AC/c6IHUDokbmVXKOi4qPAC9A==",
+			"version": "2.1.2",
+			"resolved": "https://registry.npmjs.org/vscode-uri/-/vscode-uri-2.1.2.tgz",
+			"integrity": "sha512-8TEXQxlldWAuIODdukIb+TR5s+9Ds40eSJrw+1iDDA9IFORPjMELarNQE3myz5XIkWWpdprmJjm1/SxMlWOC8A==",
 			"dev": true
 		},
 		"which": {
diff --git a/package.json b/package.json
index 04e85d21..f4c9538f 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
 	"version": "2.7.0",
 	"description": "CSS, LESS and SCSS plugin for the Monaco Editor",
 	"scripts": {
-		"compile": "mrmdir ./out && tsc -p ./src/tsconfig.json && tsc -p ./src/tsconfig.esm.json && node ./scripts/dts",
+		"compile": "mrmdir ./out && tsc -p ./src/tsconfig.json && tsc -p ./src/tsconfig.esm.json && node ./scripts/dts && prettier --write ./monaco.d.ts",
 		"watch": "tsc -p ./src --watch",
 		"prepublishOnly": "mrmdir ./release && npm run compile && node ./scripts/release.js && node ./scripts/bundle && mcopy ./monaco.d.ts ./release/monaco.d.ts && mcopy ./out/esm/monaco.contribution.d.ts ./release/esm/monaco.contribution.d.ts && mcopy ./out/esm/fillers/monaco-editor-core.d.ts ./release/esm/fillers/monaco-editor-core.d.ts",
 		"install-service-next": "npm install vscode-css-languageservice@next -f -D && npm install vscode-languageserver-types@next -f -D",
@@ -22,7 +22,7 @@
 	"module": "./release/esm/monaco.contribution.js",
 	"typings": "./release/esm/monaco.contribution.d.ts",
 	"devDependencies": {
-		"husky": "^4.2.5",
+		"husky": "^4.3.0",
 		"monaco-editor-core": "0.20.0",
 		"monaco-languages": "1.10.0",
 		"monaco-plugin-helpers": "^1.0.3",
@@ -31,9 +31,9 @@
 		"requirejs": "^2.3.6",
 		"typescript": "4.0.2",
 		"terser": "^5.3.0",
-		"vscode-css-languageservice": "4.0.3-next.25",
-		"vscode-languageserver-types": "3.15.0-next.9",
-		"vscode-languageserver-textdocument": "^1.0.0-next.5"
+		"vscode-css-languageservice": "4.3.3",
+		"vscode-languageserver-types": "3.15.1",
+		"vscode-languageserver-textdocument": "^1.0.1"
 	},
 	"husky": {
 		"hooks": {
diff --git a/src/languageFeatures.ts b/src/languageFeatures.ts
index d5b2e19b..164bf03d 100644
--- a/src/languageFeatures.ts
+++ b/src/languageFeatures.ts
@@ -18,6 +18,7 @@ import {
 	IDisposable,
 	MarkerSeverity
 } from './fillers/monaco-editor-core';
+import { InsertReplaceEdit, TextEdit } from 'vscode-css-languageservice';
 
 export interface WorkerAccessor {
 	(first: Uri, ...more: Uri[]): Promise<CSSWorker>;
@@ -183,6 +184,15 @@ function toRange(range: cssService.Range): Range {
 	);
 }
 
+function isInsertReplaceEdit(
+	edit: TextEdit | InsertReplaceEdit
+): edit is InsertReplaceEdit {
+	return (
+		typeof (<InsertReplaceEdit>edit).insert !== 'undefined' &&
+		typeof (<InsertReplaceEdit>edit).replace !== 'undefined'
+	);
+}
+
 function toCompletionItemKind(kind: number): languages.CompletionItemKind {
 	let mItemKind = languages.CompletionItemKind;
 
@@ -282,7 +292,14 @@ export class CompletionAdapter implements languages.CompletionItemProvider {
 						kind: toCompletionItemKind(entry.kind)
 					};
 					if (entry.textEdit) {
-						item.range = toRange(entry.textEdit.range);
+						if (isInsertReplaceEdit(entry.textEdit)) {
+							item.range = {
+								insert: toRange(entry.textEdit.insert),
+								replace: toRange(entry.textEdit.replace)
+							};
+						} else {
+							item.range = toRange(entry.textEdit.range);
+						}
 						item.insertText = entry.textEdit.newText;
 					}
 					if (entry.additionalTextEdits) {