diff --git a/package.json b/package.json
index ae09f13..e8c191b 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "tslint": "5.10.0",
     "tslint-config-prettier": "1.13.0",
     "tslint-config-standard": "7.0.0",
-    "typescript": "2.8.4"
+    "typescript": "2.9.2"
   },
   "peerDependencies": {
     "graphql-middleware": "^1.3.2"
diff --git a/yarn.lock b/yarn.lock
index bf547f7..90f776c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4070,9 +4070,9 @@ tsutils@^2.12.1:
   dependencies:
     tslib "^1.8.1"
 
-typescript@2.8.4:
-  version "2.8.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.8.4.tgz#0b1db68e6bdfb0b767fa2ab642136a35b059b199"
+typescript@2.9.2:
+  version "2.9.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.9.2.tgz#1cbf61d05d6b96269244eb6a3bce4bd914e0f00c"
 
 uglify-js@^2.6:
   version "2.8.29"