diff --git a/extensions/css-language-features/server/package.json b/extensions/css-language-features/server/package.json
index 6f2e734a109d448b4c1312baf889e839187f4e26..d1913a26acfa4c4b3b1788a23bada342f7a88063 100644
--- a/extensions/css-language-features/server/package.json
+++ b/extensions/css-language-features/server/package.json
@@ -9,7 +9,7 @@
   },
   "main": "./out/cssServerMain",
   "dependencies": {
-    "vscode-css-languageservice": "^4.0.2",
+    "vscode-css-languageservice": "^4.0.3-next.0",
     "vscode-languageserver": "^5.3.0-next.8"
   },
   "devDependencies": {
diff --git a/extensions/css-language-features/server/src/cssServerMain.ts b/extensions/css-language-features/server/src/cssServerMain.ts
index cf539df1e1da79c0327e913e5809c5d4736ee602..76374165b7c41bf13d1048814f4f654ebfed0876 100644
--- a/extensions/css-language-features/server/src/cssServerMain.ts
+++ b/extensions/css-language-features/server/src/cssServerMain.ts
@@ -8,11 +8,12 @@ import {
 } from 'vscode-languageserver';
 import URI from 'vscode-uri';
 import { TextDocument, CompletionList, Position } from 'vscode-languageserver-types';
+import { stat as fsStat } from 'fs';
 
-import { getCSSLanguageService, getSCSSLanguageService, getLESSLanguageService, LanguageSettings, LanguageService, Stylesheet } from 'vscode-css-languageservice';
+import { getCSSLanguageService, getSCSSLanguageService, getLESSLanguageService, LanguageSettings, LanguageService, Stylesheet, FileSystemProvider, FileType } from 'vscode-css-languageservice';
 import { getLanguageModelCache } from './languageModelCache';
 import { getPathCompletionParticipant } from './pathCompletion';
-import { formatError, runSafe } from './utils/runner';
+import { formatError, runSafe, runSafeAsync } from './utils/runner';
 import { getDocumentContext } from './utils/documentContext';
 import { getDataProviders } from './customData';
 
@@ -52,6 +53,45 @@ let workspaceFolders: WorkspaceFolder[];
 
 const languageServices: { [id: string]: LanguageService } = {};
 
+const fileSystemProvider: FileSystemProvider = {
+	stat(documentUri: string) {
+		const filePath = URI.parse(documentUri).fsPath;
+
+		return new Promise((c, e) => {
+			fsStat(filePath, (err, stats) => {
+				if (err) {
+					if (err.code === 'ENOENT') {
+						return c({
+							type: FileType.Unknown,
+							ctime: -1,
+							mtime: -1,
+							size: -1
+						});
+					} else {
+						return e(err);
+					}
+				}
+
+				let type = FileType.Unknown;
+				if (stats.isFile()) {
+					type = FileType.File;
+				} else if (stats.isDirectory) {
+					type = FileType.Directory;
+				} else if (stats.isSymbolicLink) {
+					type = FileType.SymbolicLink;
+				}
+
+				c({
+					type,
+					ctime: stats.ctime.getTime(),
+					mtime: stats.mtime.getTime(),
+					size: stats.size
+				});
+			});
+		});
+	}
+};
+
 // After the server has started the client sends an initialize request. The server receives
 // in the passed params the rootPath of the workspace plus the client capabilities.
 connection.onInitialize((params: InitializeParams): InitializeResult => {
@@ -81,9 +121,9 @@ connection.onInitialize((params: InitializeParams): InitializeResult => {
 	scopedSettingsSupport = !!getClientCapability('workspace.configuration', false);
 	foldingRangeLimit = getClientCapability('textDocument.foldingRange.rangeLimit', Number.MAX_VALUE);
 
-	languageServices.css = getCSSLanguageService({ customDataProviders });
-	languageServices.scss = getSCSSLanguageService({ customDataProviders });
-	languageServices.less = getLESSLanguageService({ customDataProviders });
+	languageServices.css = getCSSLanguageService({ customDataProviders, fileSystemProvider });
+	languageServices.scss = getSCSSLanguageService({ customDataProviders, fileSystemProvider });
+	languageServices.less = getLESSLanguageService({ customDataProviders, fileSystemProvider });
 
 	const capabilities: ServerCapabilities = {
 		// Tell the client that the server works in FULL text document sync mode
@@ -256,13 +296,13 @@ connection.onDocumentHighlight((documentHighlightParams, token) => {
 });
 
 
-connection.onDocumentLinks((documentLinkParams, token) => {
-	return runSafe(() => {
+connection.onDocumentLinks(async (documentLinkParams, token) => {
+	return runSafeAsync(async () => {
 		const document = documents.get(documentLinkParams.textDocument.uri);
 		if (document) {
 			const documentContext = getDocumentContext(document.uri, workspaceFolders);
 			const stylesheet = stylesheets.get(document);
-			return getLanguageService(document).findDocumentLinks(document, stylesheet, documentContext);
+			return await getLanguageService(document).findDocumentLinks2(document, stylesheet, documentContext);
 		}
 		return [];
 	}, [], `Error while computing document links for ${documentLinkParams.textDocument.uri}`, token);
diff --git a/extensions/css-language-features/server/src/utils/runner.ts b/extensions/css-language-features/server/src/utils/runner.ts
index df024167dab25052c15581be6f400c6c53255e65..98a7a96f9aa3c806ed1c1f294ea718654135186b 100644
--- a/extensions/css-language-features/server/src/utils/runner.ts
+++ b/extensions/css-language-features/server/src/utils/runner.ts
@@ -17,6 +17,27 @@ export function formatError(message: string, err: any): string {
 	return message;
 }
 
+export function runSafeAsync<T>(func: () => Thenable<T>, errorVal: T, errorMessage: string, token: CancellationToken): Thenable<T | ResponseError<any>> {
+	return new Promise<T | ResponseError<any>>((resolve) => {
+		setImmediate(() => {
+			if (token.isCancellationRequested) {
+				resolve(cancelValue());
+			}
+			return func().then(result => {
+				if (token.isCancellationRequested) {
+					resolve(cancelValue());
+					return;
+				} else {
+					resolve(result);
+				}
+			}, e => {
+				console.error(formatError(errorMessage, e));
+				resolve(errorVal);
+			});
+		});
+	});
+}
+
 export function runSafe<T, E>(func: () => T, errorVal: T, errorMessage: string, token: CancellationToken): Thenable<T | ResponseError<E>> {
 	return new Promise<T | ResponseError<E>>((resolve) => {
 		setImmediate(() => {
diff --git a/extensions/css-language-features/server/yarn.lock b/extensions/css-language-features/server/yarn.lock
index c5bfa63c8695ebc359686424c1272347e8f9b525..3537a3d2ecdabf5dca53edaa6e00e3d60199f260 100644
--- a/extensions/css-language-features/server/yarn.lock
+++ b/extensions/css-language-features/server/yarn.lock
@@ -781,13 +781,14 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-vscode-css-languageservice@^4.0.2:
-  version "4.0.2"
-  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.2.tgz#7496e538b0c151feac16d5888cc0b1b104f4c736"
-  integrity sha512-pTnfXbsME3pl+yDfhUp/mtvPyIJk0Le4zqJxDn56s9GY9LqY0RmkSEh0oHH6D0HXR3Ni6wKosIaqu8a2G0+jdw==
+vscode-css-languageservice@^4.0.3-next.0:
+  version "4.0.3-next.0"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.0.tgz#ba96894cf2a0c86c744a1274590f27e55ea60f58"
+  integrity sha512-ku58Y5jDFNfDicv2AAhgu1edgfGcRZPwlKu6EBK2ck/O/Vco7Zy64FDoClJghcYBhJiDs7sy2q/UtQD0IoGbRw==
   dependencies:
     vscode-languageserver-types "^3.15.0-next.2"
     vscode-nls "^4.1.1"
+    vscode-uri "^2.0.3"
 
 vscode-jsonrpc@^4.1.0-next.2:
   version "4.1.0-next.2"
@@ -831,6 +832,11 @@ vscode-uri@^1.0.6:
   resolved "https://registry.yarnpkg.com/vscode-uri/-/vscode-uri-1.0.6.tgz#6b8f141b0bbc44ad7b07e94f82f168ac7608ad4d"
   integrity sha512-sLI2L0uGov3wKVb9EB+vIQBl9tVP90nqRvxSoJ35vI3NjxE8jfsE5DSOhWgSunHSZmKS4OCi2jrtfxK7uyp2ww==
 
+vscode-uri@^2.0.3:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/vscode-uri/-/vscode-uri-2.0.3.tgz#25e5f37f552fbee3cec7e5f80cef8469cefc6543"
+  integrity sha512-4D3DI3F4uRy09WNtDGD93H9q034OHImxiIcSq664Hq1Y1AScehlP3qqZyTkX/RWxeu0MRMHGkrxYqm2qlDF/aw==
+
 which-module@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/which-module/-/which-module-2.0.0.tgz#d9ef07dce77b9902b8a3a8fa4b31c3e3f7e6e87a"