diff --git a/extensions/css-language-features/server/package.json b/extensions/css-language-features/server/package.json
index 6d4265225396c09d09514b31fa2ac8e037dedf7c..ed0eb4d49267a1002a7f9a9ec93cd44246ab1b1d 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.19",
+    "vscode-css-languageservice": "^4.0.3-next.20",
     "vscode-languageserver": "^6.0.0-next.3"
   },
   "devDependencies": {
diff --git a/extensions/css-language-features/server/yarn.lock b/extensions/css-language-features/server/yarn.lock
index b52fde99a00792af00d367b5203d0006f4ce30e5..eade4e075036facbd414dc008d8893e8d28fc070 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.19:
-  version "4.0.3-next.19"
-  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.19.tgz#b7dc58fb8d1968877724e163b6ef20b26c0b5ff6"
-  integrity sha512-wWSo2MZvd8aEI9lf/Asy0MP0Ao6xAzhBeEWxGcF+Ms/zcV4lDRkyFCNzwDt0OgWRzsBNaEBXfjeWLq9rNXkREA==
+vscode-css-languageservice@^4.0.3-next.20:
+  version "4.0.3-next.20"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.20.tgz#d0c4933c33e356617ccfaeb6b7144be196b8b3d9"
+  integrity sha512-9j32ppmJauPg9XYieAS6alCGazTaeEi8nhSAb11le5qfFNWep4Ngz7dNc/UMlt6hB7BESRyk2B8MM/KTlnsNBw==
   dependencies:
     vscode-languageserver-textdocument "^1.0.0-next.4"
     vscode-languageserver-types "^3.15.0-next.6"
diff --git a/extensions/html-language-features/server/package.json b/extensions/html-language-features/server/package.json
index dc078cfcb71089732137f8d8c5dfb52f33b699ff..6ce9bce33208a3fd5f75b43b46406911b82c0dc4 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.19",
+    "vscode-css-languageservice": "^4.0.3-next.20",
     "vscode-html-languageservice": "^3.0.4-next.8",
     "vscode-languageserver": "^6.0.0-next.3",
     "vscode-nls": "^4.1.1",
diff --git a/extensions/html-language-features/server/yarn.lock b/extensions/html-language-features/server/yarn.lock
index f96dfc5df6203b550ba696f7afd86c578fb620ad..4f9260128b26df14bf27b1ab52f4e77307c485dd 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.19:
-  version "4.0.3-next.19"
-  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.19.tgz#b7dc58fb8d1968877724e163b6ef20b26c0b5ff6"
-  integrity sha512-wWSo2MZvd8aEI9lf/Asy0MP0Ao6xAzhBeEWxGcF+Ms/zcV4lDRkyFCNzwDt0OgWRzsBNaEBXfjeWLq9rNXkREA==
+vscode-css-languageservice@^4.0.3-next.20:
+  version "4.0.3-next.20"
+  resolved "https://registry.yarnpkg.com/vscode-css-languageservice/-/vscode-css-languageservice-4.0.3-next.20.tgz#d0c4933c33e356617ccfaeb6b7144be196b8b3d9"
+  integrity sha512-9j32ppmJauPg9XYieAS6alCGazTaeEi8nhSAb11le5qfFNWep4Ngz7dNc/UMlt6hB7BESRyk2B8MM/KTlnsNBw==
   dependencies:
     vscode-languageserver-textdocument "^1.0.0-next.4"
     vscode-languageserver-types "^3.15.0-next.6"