diff --git a/extensions/package.json b/extensions/package.json
index 3307d7709cb..4baafc4837c 100644
--- a/extensions/package.json
+++ b/extensions/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.1",
   "description": "Dependencies shared by all extensions",
   "dependencies": {
-    "typescript": "^4.0.1-insiders.20200813"
+    "typescript": "^4.0.2-insiders.20200818"
   },
   "scripts": {
     "postinstall": "node ./postinstall"
diff --git a/extensions/yarn.lock b/extensions/yarn.lock
index 9a140984799..24b3bceafc9 100644
--- a/extensions/yarn.lock
+++ b/extensions/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-typescript@^4.0.1-insiders.20200813:
-  version "4.0.1-insiders.20200813"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.1-insiders.20200813.tgz#0b17335a7517023be0f1ce947052662ab2bde1f0"
-  integrity sha512-mTQPs9uyxv6jLEO5Z+LJpFUSQwx9KI3ZD+2Uv9e5O32Oz/16snCB5skBHw5k1PchsXOZCG6xcB902qmgjI0tWQ==
+typescript@^4.0.2-insiders.20200818:
+  version "4.0.2-insiders.20200818"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.0.2-insiders.20200818.tgz#50d949f8d7ae460ce2f2f5a4121ff020a54711e8"
+  integrity sha512-5/y/W/EFwly+UAm8X77bPjh8FG1GsLRRtrWApIIAsT6kcN9auKhHyrEIUYSahm/WX9F3f7svRxKm6eddvEzyAw==