diff --git a/appveyor.yml b/appveyor.yml
index 11149e4..50df796 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -6,7 +6,7 @@
   branches:
     only:
       - master
-  image: Visual Studio 2017
+  image: Visual Studio 2015
   environment:
     DOTNET_CLI_TELEMETRY_OPTOUT: true
     DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true