diff --git a/build/package.json b/build/package.json
index d7e68e7ce3f..5de4f23887b 100644
--- a/build/package.json
+++ b/build/package.json
@@ -48,7 +48,7 @@
     "minimist": "^1.2.3",
     "request": "^2.85.0",
     "terser": "4.3.8",
-    "typescript": "^4.1.0-dev.20201018",
+    "typescript": "^4.2.0-dev.20201104",
     "vsce": "1.48.0",
     "vscode-telemetry-extractor": "^1.6.0",
     "xml2js": "^0.4.17"
diff --git a/build/yarn.lock b/build/yarn.lock
index afb6ff0b7c8..bdf8fa7d994 100644
--- a/build/yarn.lock
+++ b/build/yarn.lock
@@ -3349,10 +3349,10 @@ typescript@^3.0.1:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
   integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
 
-typescript@^4.1.0-dev.20201018:
-  version "4.1.0-dev.20201018"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.0-dev.20201018.tgz#1a4b8e3f9b640218a44299773371354d75bcfa34"
-  integrity sha512-cOFYP1I+IrMWa6ZfefxcacZha1pQMxrq8DGMBLkvrl8k3CqIdD8APq9LXaMj/PWrB8IPgDprY6jHwqiHg0/oGA==
+typescript@^4.2.0-dev.20201104:
+  version "4.2.0-dev.20201104"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.0-dev.20201104.tgz#9dca362fd423ac9391ef4a67bdc6f18537e9593c"
+  integrity sha512-MEnAcd0iwQySO+8F19KXGsX8WaHMda48j66I4qqUO8bknueGJUH/FdG9MakpApXd2Lzd9tlUMlOyT07dxeNsSQ==
 
 typical@^4.0.0:
   version "4.0.0"
diff --git a/package.json b/package.json
index 45d63a743bd..6f6cb3831f3 100644
--- a/package.json
+++ b/package.json
@@ -167,7 +167,7 @@
     "style-loader": "^1.0.0",
     "ts-loader": "^4.4.2",
     "tsec": "googleinterns/tsec",
-    "typescript": "^4.1.0-dev.20201018",
+    "typescript": "^4.2.0-dev.20201104",
     "typescript-formatter": "7.1.0",
     "underscore": "^1.8.2",
     "vinyl": "^2.0.0",
diff --git a/yarn.lock b/yarn.lock
index ff358cb6a10..b4445e1ca40 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9291,10 +9291,10 @@ typescript@^2.6.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.6.2.tgz#3c5b6fd7f6de0914269027f03c0946758f7673a4"
   integrity sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q=
 
-typescript@^4.1.0-dev.20201018:
-  version "4.1.0-dev.20201018"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.1.0-dev.20201018.tgz#1a4b8e3f9b640218a44299773371354d75bcfa34"
-  integrity sha512-cOFYP1I+IrMWa6ZfefxcacZha1pQMxrq8DGMBLkvrl8k3CqIdD8APq9LXaMj/PWrB8IPgDprY6jHwqiHg0/oGA==
+typescript@^4.2.0-dev.20201104:
+  version "4.2.0-dev.20201104"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.2.0-dev.20201104.tgz#9dca362fd423ac9391ef4a67bdc6f18537e9593c"
+  integrity sha512-MEnAcd0iwQySO+8F19KXGsX8WaHMda48j66I4qqUO8bknueGJUH/FdG9MakpApXd2Lzd9tlUMlOyT07dxeNsSQ==
 
 uc.micro@^1.0.1, uc.micro@^1.0.3:
   version "1.0.3"