diff --git a/appveyor.yml b/appveyor.yml
index fdecc45..4222047 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -53,11 +53,6 @@ environment:
       ADDPATH: C:\cygwin64\bin;
       EXTRA_TESTS: 1
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-    - TOOLSET: gcc
-      CXXSTD: 11,14,1z
-      ADDPATH: C:\mingw\bin;
-      EXTRA_TESTS: 1
-      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
     - TOOLSET: gcc
       CXXSTD: 11,14,1z
       ADDPATH: C:\mingw-w64\x86_64-6.3.0-posix-seh-rt_v5-rev1\mingw64\bin;