diff --git a/appveyor.yml b/appveyor.yml
index 6dd6f00bc0..c593022a88 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,7 +1,5 @@
 version: '{build}'
 
-os: Previous Visual Studio 2015
-
 branches:
   only:
   - master