diff --git a/.appveyor.yml b/.appveyor.yml
index 5d2de46..5879f45 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -37,10 +37,6 @@ environment:
       ADDPATH: C:\cygwin64\bin;
       TOOLSET: gcc
       CXXSTD: 11,14,17
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      ADDPATH: C:\mingw\bin;
-      TOOLSET: gcc
-      CXXSTD: 11,14,1z
     - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
       ADDPATH: C:\mingw-w64\i686-8.1.0-posix-dwarf-rt_v6-rev0\mingw32\bin;
       TOOLSET: gcc