diff --git a/appveyor.yml b/appveyor.yml
index 6add144..0d2dfcf 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -18,7 +18,7 @@ environment:
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       TOOLSET: msvc-12.0
 
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
       TOOLSET: msvc-14.0
 
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017