diff --git a/appveyor.yml b/appveyor.yml
index 79bb451b..7635dd45 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-os: Visual Studio 2014 CTP4
+os: Visual Studio 2015
 version: "{build}"
 build: off
 platform: x64