diff --git a/appveyor.yml b/appveyor.yml
index d3a5474..9c0345e 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -55,9 +55,6 @@ environment:
   - TOOLSET: mingw-5
     platform: 32
     APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-  - TOOLSET: mingw64-5
-    platform: 64
-    APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
   - TOOLSET: mingw64-6
     platform: 64
     APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015