diff --git a/.appveyor.yml b/.appveyor.yml
index 3082ae6..ec8dd6d 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -4,6 +4,7 @@ pull_requests:
 branches:
   only:
   - master
+image: Visual Studio 2017
 configuration: Release
 environment:
   matrix: