diff --git a/.travis.yml b/.travis.yml
index aaa3db5..8bd76df 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -77,12 +77,6 @@ matrix:
     - os: osx
       osx_image: xcode8
 
-    - os: osx
-      osx_image: xcode8.1
-
-    - os: osx
-      osx_image: xcode8.2
-
     - os: osx
       osx_image: xcode8.3
 
diff --git a/README.md b/README.md
index 4e7449f..fa4620d 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 
 
 [![Build Status](https://travis-ci.org/pantor/inja.svg?branch=master)](https://travis-ci.org/pantor/inja)
+[![Build status](https://ci.appveyor.com/api/projects/status/qtgniyyg6fn8ich8?svg=true)](https://ci.appveyor.com/project/pantor/inja)
 [![Coverage Status](https://img.shields.io/coveralls/pantor/inja.svg)](https://coveralls.io/r/pantor/inja)
 [![Codacy Status](https://api.codacy.com/project/badge/Grade/aa2041f1e6e648ae83945d29cfa0da17)](https://www.codacy.com/app/pantor/inja?utm_source=github.com&utm_medium=referral&utm_content=pantor/inja&utm_campaign=Badge_Grade)
 [![Github Issues](https://img.shields.io/github/issues/pantor/inja.svg)](http://github.com/pantor/inja/issues)
@@ -156,7 +157,9 @@ render("Hello{# Todo #}!", data); // "Hello!"
 Currently, the following compilers are tested:
 
 - GCC 4.9 - 7.1 (and possibly later)
-- Clang 3.6 - 3.8 (and possibly later)
+- Clang 3.6 - 3.7 (and possibly later)
+- Microsoft Visual C++ 2015 / Build Tools 14.0.25123.0 (and possibly later)
+- Microsoft Visual C++ 2017 / Build Tools 15.1.548.43366 (and possibly later)
 
 
 ## License