diff --git a/appveyor.yml b/appveyor.yml
index c63c69d..34106d3 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -9,6 +9,14 @@ environment:
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
       SETUP_COMPILER_FLAG:
       ARCH_BITS: 32
+    - PYTHON_VER: C:\Python36
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      SETUP_COMPILER_FLAG:
+      ARCH_BITS: 32
+    - PYTHON_VER: C:\Python36-x64
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      SETUP_COMPILER_FLAG:
+      ARCH_BITS: 64
     - PYTHON_VER: C:\Python37
       APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
       SETUP_COMPILER_FLAG: