diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c278a1cc..5ed36dc1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,16 +24,10 @@ jobs:
         - 2.5
         - 2.4
         - 2.3
-        - debug
         include:
-        - { os: windows-latest , ruby: mingw }
-        - { os: windows-latest , ruby: mswin }
         - { os: ubuntu-latest  , ruby: jruby-9.1 } # Ruby 2.3
         - { os: ubuntu-latest  , ruby: jruby-9.2 } # Ruby 2.5
         - { os: ubuntu-latest  , ruby: truffleruby }
-        exclude:
-        - { os: windows-latest , ruby: '3.0' }
-        - { os: windows-latest , ruby: debug }
 
     steps:
       - uses: actions/checkout@v2
diff --git a/README.md b/README.md
index e0205574..288ccdfc 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # JSON implementation for Ruby
 
-[![Travis Widget](http://travis-ci.org/flori/json.svg?branch=master)](https://travis-ci.org/flori/json)
+[![CI](https://github.com/flori/json/actions/workflows/ci.yml/badge.svg)](https://github.com/flori/json/actions/workflows/ci.yml)
 
 ## Description