diff --git a/appveyor.yml b/appveyor.yml
index 862993a21..2d18fdcbb 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,6 +3,7 @@ configuration: Release
 os: Visual Studio 2017
 environment:
   nodejs_version: "9.8.0"
+  typescript_version: "3.0.1"
 
 install:
   # Get the latest stable version of Node.js or io.js