diff --git a/extensions/css-language-features/client/src/cssMain.ts b/extensions/css-language-features/client/src/cssMain.ts
index 778b9086fd5..b526c9be901 100644
--- a/extensions/css-language-features/client/src/cssMain.ts
+++ b/extensions/css-language-features/client/src/cssMain.ts
@@ -45,32 +45,6 @@ export function activate(context: ExtensionContext) {
 		},
 		initializationOptions: {
 			dataPaths
-		},
-		middleware: {
-			async provideCompletionItem(document, position, context, token, next) {
-				const result = await next(document, position, context, token);
-				if (result) {
-					if (isArray(result)) {
-						return result.map(r => {
-							return {
-								...r,
-								tags: (r as any).deprecated ? [CompletionItemTag.Deprecated] : undefined
-							};
-						});
-					} else {
-						return {
-							isIncomplete: result.isIncomplete,
-							items: result.items.map(r => {
-								return {
-									...r,
-									tags: (r as any).deprecated ? [CompletionItemTag.Deprecated] : undefined
-								};
-							})
-						};
-					}
-				}
-				return result;
-			}
 		}
 	};
 
diff --git a/extensions/css-language-features/server/package.json b/extensions/css-language-features/server/package.json
index 584e941ae24..d8d7d9b364c 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": "^4.0.3-next.13",
+    "vscode-css-languageservice": "^4.0.3-next.14",
     "vscode-languageserver": "^6.0.0-next.1"
   },
   "devDependencies": {
diff --git a/extensions/css-language-features/server/yarn.lock b/extensions/css-language-features/server/yarn.lock
index 8ce1deb2cac..ab10896976e 100644
--- a/extensions/css-language-features/server/yarn.lock
+++ b/extensions/css-language-features/server/yarn.lock
@@ -781,10 +781,10 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-vscode-css-languageservice@^4.0.3-next.13:
-  version "4.0.3-next.13"
-  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.13.tgz#a6c567f5dcf490ac430a6500935919826a3f057a"
-  integrity sha512-RqTxCXTB0owqiTJwUaELYMxpPl8Znd5b0FCaFs7QF7HmvUnS/MHGWDLLSJM/19H3wLemjZFwI+kX6PBTsnbAog==
+vscode-css-languageservice@^4.0.3-next.14:
+  version "4.0.3-next.14"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.14.tgz#dcdbaec144c948c3f1f3640147f0102e0b964468"
+  integrity sha512-moBCof4SxK196tZ0cZe7U96goNvYKei8xptX/35Ka+N3aIeBjB8BDa2rxsa+KcdwmXhrlgWFbkx32dBRqNZ+6Q==
   dependencies:
     vscode-languageserver-types "^3.15.0-next.5"
     vscode-nls "^4.1.1"
diff --git a/extensions/html-language-features/server/package.json b/extensions/html-language-features/server/package.json
index 47d4c8afe32..863381c8dcf 100644
--- a/extensions/html-language-features/server/package.json
+++ b/extensions/html-language-features/server/package.json
@@ -9,7 +9,7 @@
   },
   "main": "./out/htmlServerMain",
   "dependencies": {
-    "vscode-css-languageservice": "^4.0.3-next.13",
+    "vscode-css-languageservice": "^4.0.3-next.14",
     "vscode-html-languageservice": "^3.0.4-next.6",
     "vscode-languageserver": "^6.0.0-next.1",
     "vscode-languageserver-types": "3.15.0-next.5",
diff --git a/extensions/html-language-features/server/yarn.lock b/extensions/html-language-features/server/yarn.lock
index e9d8d852770..7f0ae5b681f 100644
--- a/extensions/html-language-features/server/yarn.lock
+++ b/extensions/html-language-features/server/yarn.lock
@@ -611,10 +611,10 @@ supports-color@^5.3.0:
   dependencies:
     has-flag "^3.0.0"
 
-vscode-css-languageservice@^4.0.3-next.13:
-  version "4.0.3-next.13"
-  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.13.tgz#a6c567f5dcf490ac430a6500935919826a3f057a"
-  integrity sha512-RqTxCXTB0owqiTJwUaELYMxpPl8Znd5b0FCaFs7QF7HmvUnS/MHGWDLLSJM/19H3wLemjZFwI+kX6PBTsnbAog==
+vscode-css-languageservice@^4.0.3-next.14:
+  version "4.0.3-next.14"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.14.tgz#dcdbaec144c948c3f1f3640147f0102e0b964468"
+  integrity sha512-moBCof4SxK196tZ0cZe7U96goNvYKei8xptX/35Ka+N3aIeBjB8BDa2rxsa+KcdwmXhrlgWFbkx32dBRqNZ+6Q==
   dependencies:
     vscode-languageserver-types "^3.15.0-next.5"
     vscode-nls "^4.1.1"