diff --git a/package.json b/package.json
index 44e4316..2924f61 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,6 @@
     "tslint-config-ikatyang": "2.5.1",
     "tslint-config-prettier": "1.10.0",
     "tslint-plugin-prettier": "1.3.0",
-    "typescript": "2.7.2"
+    "typescript": "2.8.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 423a3aa..67bbd58 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3455,9 +3455,9 @@ type-detect@^4.0.0:
   version "4.0.8"
   resolved "https://registry.yarnpkg.com/type-detect/-/type-detect-4.0.8.tgz#7646fb5f18871cfbb7749e69bd39a6388eb7450c"
 
-typescript@2.7.2:
-  version "2.7.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.7.2.tgz#2d615a1ef4aee4f574425cdff7026edf81919836"
+typescript@2.8.1:
+  version "2.8.1"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.8.1.tgz#6160e4f8f195d5ba81d4876f9c0cc1fbc0820624"
 
 uglify-js@^2.6:
   version "2.8.29"