diff --git a/appveyor.yml b/appveyor.yml
index e3d3907..5c721de 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ skip_commits:
   files:
     - '**/*.md'
     - '**/*.aip'
-image: Visual Studio 2017
+image: Visual Studio 2015
 configuration: Release
 platform:
   - x86