diff --git a/appveyor.yml b/appveyor.yml
index 82efb06..846a04c 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,3 +1,4 @@
+image: Visual Studio 2017
 environment:
   CIRCLE_TOKEN:
     secure: TQKcepXmTzCNt4+tUBtYpwEQkdSPwFr9A8ugtoMhNbKu/SW1WM1EpjEu6kYXxpQ4