diff --git a/appveyor.yml b/appveyor.yml
index 6b3a0f096b..966feb4725 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,6 +1,6 @@
 version: 1.0.{build}
 
-os: Windows Server 2012
+os: Previous Windows Server 2012 R2
 
 platform:
   - x64