diff --git a/.travis.yml b/.travis.yml
index 2ae9d62..8eb7ffc 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,3 +1,6 @@
+os:
+  - linux
+  - windows
 language: node_js
 node_js:
   - '10'
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index 593a7fd..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-environment:
-  matrix:
-    - nodejs_version: '10'
-    - nodejs_version: '8'
-    - nodejs_version: '6'
-install:
-  - ps: Install-Product node $env:nodejs_version
-  - set CI=true
-  - npm -g install npm@latest
-  - set PATH=%APPDATA%\npm;%PATH%
-  - npm install
-matrix:
-  fast_finish: true
-build: off
-version: '{build}'
-shallow_clone: true
-clone_depth: 1
-test_script:
-  - node --version
-  - npm --version
-  - npm test
diff --git a/readme.md b/readme.md
index 7ba6a8c..1c87ec2 100644
--- a/readme.md
+++ b/readme.md
@@ -1,4 +1,4 @@
-# imagemin-gifsicle [![Build Status](http://img.shields.io/travis/imagemin/imagemin-gifsicle.svg?style=flat)](https://travis-ci.org/imagemin/imagemin-gifsicle) [![Build status](https://ci.appveyor.com/api/projects/status/51vfu1ntxwx7t949?svg=true)](https://ci.appveyor.com/project/ShinnosukeWatanabe/imagemin-gifsicle)
+# imagemin-gifsicle [![Build Status](http://img.shields.io/travis/imagemin/imagemin-gifsicle.svg?style=flat)](https://travis-ci.org/imagemin/imagemin-gifsicle)
 
 > Imagemin plugin for [Gifsicle](https://www.lcdf.org/gifsicle/)