diff --git a/extensions/package.json b/extensions/package.json
index da7f9f2b326e5d968370a51d956692cfb4ca6d42..2615d1efa9bb34d36f2e4ff544f7bf6fad7cf163 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": "3.5.0-dev.20190517"
+    "typescript": "3.5.0-dev.20190522"
   },
   "scripts": {
     "postinstall": "node ./postinstall"
diff --git a/extensions/yarn.lock b/extensions/yarn.lock
index 38c68f6e8f7b04033ec19022d30f45befa2a08c7..659f98aa615deca0cad139a1ff16eeffccd2fd42 100644
--- a/extensions/yarn.lock
+++ b/extensions/yarn.lock
@@ -2,7 +2,7 @@
 # yarn lockfile v1
 
 
-typescript@3.5.0-dev.20190517:
-  version "3.5.0-dev.20190517"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.0-dev.20190517.tgz#5a85f1091cf33fde39b04f898c5730e30edd3e39"
-  integrity sha512-KoBHq6ytEApXKTDtmTu4Sp/tC5SPe4FpvwutLEANhwdMPblqZdh7APuH7I/ceMlgfHSa7B00JgF7NokUJQi0/g==
+typescript@3.5.0-dev.20190522:
+  version "3.5.0-dev.20190522"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.0-dev.20190522.tgz#ade4702c6e599a7e8905d7acaaf416f7e32ba0fc"
+  integrity sha512-V+QsNMtXl8lGwov4O04D+E6vtiL0TWEpz6iDxI2tAZizEn7y8Hh9SXzz3JRWepr7dfdqqxEv9CT3J18zpaZKJQ==