diff --git a/extensions/markdown-language-features/package-lock.json b/extensions/markdown-language-features/package-lock.json
index 2f9eab5a2a5..4d17bbc1f6d 100644
--- a/extensions/markdown-language-features/package-lock.json
+++ b/extensions/markdown-language-features/package-lock.json
@@ -19,7 +19,7 @@
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         "vscode-languageclient": "^8.0.2",
         "vscode-languageserver-textdocument": "^1.0.11",
-        "vscode-markdown-languageserver": "^0.5.0-alpha.11",
+        "vscode-markdown-languageserver": "^0.5.0-alpha.12",
         "vscode-uri": "^3.0.3"
       },
       "devDependencies": {
@@ -303,9 +303,9 @@
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     },
     "node_modules/css-select": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.1.0.tgz",
-      "integrity": "sha512-nwoRF1rvRRnnCqqY7updORDsuqKzqYJ28+oSMaJMMgOauh3fvwHqMS7EZpIPqK8GL+g9mKxF1vP/ZjSeNjEVHg==",
+      "version": "5.2.2",
+      "resolved": "https://registry.npmjs.org/css-select/-/css-select-5.2.2.tgz",
+      "integrity": "sha512-TizTzUddG/xYLA3NXodFM0fSbNizXjOKhqiQQwvhlspadZokn1KDy0NZFS0wuEubIYAV5/c1/lAr0TaaFXEXzw==",
       "license": "BSD-2-Clause",
       "dependencies": {
         "boolbase": "^1.0.0",
@@ -319,9 +319,9 @@
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     "node_modules/css-what": {
-      "version": "6.1.0",
-      "resolved": "https://registry.npmjs.org/css-what/-/css-what-6.1.0.tgz",
-      "integrity": "sha512-HTUrgRJ7r4dsZKU6GjmpfRK1O76h97Z8MfS1G0FozR+oF2kG6Vfe8JE6zwrkbxigziPHinCJ+gCPjA9EaBDtRw==",
+      "version": "6.2.2",
+      "resolved": "https://registry.npmjs.org/css-what/-/css-what-6.2.2.tgz",
+      "integrity": "sha512-u/O3vwbptzhMs3L1fQE82ZSLHQQfto5gyZzwteVIEyeaY5Fc7R4dapF/BvRoSYFeqfBk4m0V1Vafq5Pjv25wvA==",
       "license": "BSD-2-Clause",
       "engines": {
         "node": ">= 6"
@@ -649,16 +649,16 @@
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     },
     "node_modules/vscode-markdown-languageserver": {
-      "version": "0.5.0-alpha.11",
-      "resolved": "https://registry.npmjs.org/vscode-markdown-languageserver/-/vscode-markdown-languageserver-0.5.0-alpha.11.tgz",
-      "integrity": "sha512-sgNCZyMalt+05bA7ZWNeFPvx+etP/xApTuVUjhOCblJknwJluCWay7EpKsO97G5JFaZmr75F3FV+OlfB6uon8Q==",
+      "version": "0.5.0-alpha.12",
+      "resolved": "https://registry.npmjs.org/vscode-markdown-languageserver/-/vscode-markdown-languageserver-0.5.0-alpha.12.tgz",
+      "integrity": "sha512-cDRJKwWPZBHrrwufTHrhuZqGgBEGJcYo29Iwhvgh2BgTnIB+fp6Vs62LlqNUu25qsDjmZLLkIEQxntcX4kbfUQ==",
       "license": "MIT",
       "dependencies": {
         "@vscode/l10n": "^0.0.11",
         "vscode-languageserver": "^8.1.0",
         "vscode-languageserver-textdocument": "^1.0.8",
         "vscode-languageserver-types": "^3.17.3",
-        "vscode-markdown-languageservice": "^0.5.0-alpha.9",
+        "vscode-markdown-languageservice": "^0.5.0-alpha.11",
         "vscode-uri": "^3.0.7"
       },
       "engines": {
@@ -671,9 +671,9 @@
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     },
     "node_modules/vscode-markdown-languageserver/node_modules/vscode-markdown-languageservice": {
-      "version": "0.5.0-alpha.9",
-      "resolved": "https://registry.npmjs.org/vscode-markdown-languageservice/-/vscode-markdown-languageservice-0.5.0-alpha.9.tgz",
-      "integrity": "sha512-OrE8homBOuXX9FOUhqRXgx/Iw0qA94yj3FBRSMztn8VveeO1Y0Eqej/9HBb5ga4sYdlFtQRIZ19lie37TsI+cQ==",
+      "version": "0.5.0-alpha.11",
+      "resolved": "https://registry.npmjs.org/vscode-markdown-languageservice/-/vscode-markdown-languageservice-0.5.0-alpha.11.tgz",
+      "integrity": "sha512-P1uBMAD5iylgpcweWCU1kQwk8SZngktnljXsZk1vFPorXv1mrEI7BkBpOUU0fhVssKgvFlCNLkI7KmwZLC7pdA==",
       "license": "MIT",
       "dependencies": {
         "@vscode/l10n": "^0.0.10",
diff --git a/extensions/markdown-language-features/package.json b/extensions/markdown-language-features/package.json
index 543d2e12719..da79dca2a4d 100644
--- a/extensions/markdown-language-features/package.json
+++ b/extensions/markdown-language-features/package.json
@@ -776,7 +776,7 @@
     "punycode": "^2.3.1",
     "vscode-languageclient": "^8.0.2",
     "vscode-languageserver-textdocument": "^1.0.11",
-    "vscode-markdown-languageserver": "^0.5.0-alpha.11",
+    "vscode-markdown-languageserver": "^0.5.0-alpha.12",
     "vscode-uri": "^3.0.3"
   },
   "devDependencies": {