diff --git a/extensions/package.json b/extensions/package.json
index c162a8f58f57f..d746f10290352 100644
--- a/extensions/package.json
+++ b/extensions/package.json
@@ -3,9 +3,9 @@
   "version": "0.0.1",
   "description": "Dependencies shared by all extensions",
   "dependencies": {
-    "typescript": "3.3.0-dev.20190108"
+    "typescript": "3.3.0-rc"
   },
   "scripts": {
     "postinstall": "node ./postinstall"
   }
-}
+}
\ No newline at end of file
diff --git a/extensions/yarn.lock b/extensions/yarn.lock
index 7ba5f1f77f8a2..d9da95bb124fa 100644
--- a/extensions/yarn.lock
+++ b/extensions/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-typescript@3.3.0-dev.20190108:
-  version "3.3.0-dev.20190108"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.0-dev.20190108.tgz#4ac2e3f7b619a961bfae0750412bf9e79fafe720"
-  integrity sha512-GNGczOoEyZtqbY72G6fNnyCsgSw/gSLyVxHfduDalKl0tOrIt+mEV5JyVQzEMsmcyO821/3QsCjulJHS5KFOWg==
+typescript@3.3.0-rc:
+  version "3.3.0-rc"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.0-rc.tgz#700578b55868f99c79870c5611570663b3e21e44"
+  integrity sha512-C8FMc5pU+gFLm/rXKcwjHIeQnXJXfPNmONhKDSUWeVhyrnSqEI84EzoZylTqN0g6sJwdsn1W1AuG0RQRhfhSEA==