diff --git a/appveyor.yml b/appveyor.yml
index 02d0f87..0e77acc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,5 +1,5 @@
 version: '{build}'
-os: Visual Studio 2015 Preview
+os: Visual Studio 2015 RC
 configuration: Release
 platform: Any CPU
 assembly_info: