diff --git a/build/package.json b/build/package.json
index 08f2bf307564024f7d1e0db712b74117c5aff023..7392e4b602c29eb23bc2b1840a3afd7d0740d4e3 100644
--- a/build/package.json
+++ b/build/package.json
@@ -45,7 +45,7 @@
     "minimist": "^1.2.3",
     "request": "^2.85.0",
     "terser": "4.3.8",
-    "typescript": "^4.0.0-dev.20200803",
+    "typescript": "^4.0.1-rc",
     "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 4aa0234e59f56eefcdb4e04e31595a6db6169ebc..d610f9cefa75fae38532bf965ba55e3fd9d3bdbe 100644
--- a/build/yarn.lock
+++ b/build/yarn.lock
@@ -2535,10 +2535,10 @@ 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@^4.0.0-dev.20200803:
-  version "4.0.0-dev.20200803"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.0-dev.20200803.tgz#ea8b0e9fb2ee3085598ff200c8568f04f4cbb2ba"
-  integrity sha512-f/jDkFqCs0gbUd5MCUijO9u3AOMx1x1HdRDDHSidlc6uPVEkRduxjeTFhIXbGutO7ivzv+aC2sxH+1FQwsyBcg==
+typescript@^4.0.1-rc:
+  version "4.0.1-rc"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.1-rc.tgz#8adc78223eae56fe71d906a5fa90c3543b07a677"
+  integrity sha512-TCkspT3dSKOykbzS3/WSK7pqU2h1d/lEO6i45Afm5Y3XNAEAo8YXTG3kHOQk/wFq/5uPyO1+X8rb/Q+g7UsxJw==
 
 typical@^4.0.0:
   version "4.0.0"
diff --git a/package.json b/package.json
index 46b582a2a376f1667aa5a0bffe1fdc08524239bf..ddd7346cafb65c320ff6a081471bf83c99022364 100644
--- a/package.json
+++ b/package.json
@@ -164,7 +164,7 @@
     "source-map": "^0.4.4",
     "style-loader": "^1.0.0",
     "ts-loader": "^4.4.2",
-    "typescript": "^4.0.0-dev.20200803",
+    "typescript": "^4.0.1-rc",
     "typescript-formatter": "7.1.0",
     "underscore": "^1.8.2",
     "vinyl": "^2.0.0",
@@ -191,4 +191,4 @@
     "windows-mutex": "0.3.0",
     "windows-process-tree": "0.2.4"
   }
-}
\ No newline at end of file
+}
diff --git a/yarn.lock b/yarn.lock
index b2fbf543af319fcc3973248b4ed4981db1ca213a..65f778461164e0dea7131b1c55c06e95c3987ccd 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9369,10 +9369,10 @@ typescript@^2.6.2:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.6.2.tgz#3c5b6fd7f6de0914269027f03c0946758f7673a4"
   integrity sha1-PFtv1/beCRQmkCfwPAlGdY92c6Q=
 
-typescript@^4.0.0-dev.20200803:
-  version "4.0.0-dev.20200803"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.0-dev.20200803.tgz#ea8b0e9fb2ee3085598ff200c8568f04f4cbb2ba"
-  integrity sha512-f/jDkFqCs0gbUd5MCUijO9u3AOMx1x1HdRDDHSidlc6uPVEkRduxjeTFhIXbGutO7ivzv+aC2sxH+1FQwsyBcg==
+typescript@^4.0.1-rc:
+  version "4.0.1-rc"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.1-rc.tgz#8adc78223eae56fe71d906a5fa90c3543b07a677"
+  integrity sha512-TCkspT3dSKOykbzS3/WSK7pqU2h1d/lEO6i45Afm5Y3XNAEAo8YXTG3kHOQk/wFq/5uPyO1+X8rb/Q+g7UsxJw==
 
 uc.micro@^1.0.1, uc.micro@^1.0.3:
   version "1.0.3"