diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f1bc823..e53a3c0 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -16,7 +16,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        php-versions: ['7.2', '7.3', '7.4', '8.0']
+        php-versions: ['7.2', '7.3', '7.4']
 
     steps:
     - uses: actions/checkout@v2
@@ -25,6 +25,7 @@ jobs:
       uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php
       with:
         php-version: ${{ matrix.php-versions }}
+        extensions: mbstring, intl
         tools: composer:v2
 
     - name: Get composer cache directory
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index e7f1262..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-language: php
-php:
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4
-matrix:
-  fast_finish: true
-# cache vendor dirs
-cache:
-  directories:
-    - $HOME/.composer/cache
-    - vendor
-
-install:
-  - phpenv config-rm xdebug.ini || echo "xdebug is not installed"
-  - travis_retry composer self-update && composer --version
-  - travis_retry composer install --prefer-dist --no-interaction
-
-script: vendor/bin/phpunit -vvv
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b47097e..5f25ef1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+2.2.0
+  - Fix dev dependencies for composer2.0 compatibility
+  - code typehint fixes
+  
 2.1.1
   - Improve json output format
   - code style fixes
diff --git a/README.md b/README.md
index 3e61027..9a4ffb7 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Project scanner for detect unused composer dependencies
 
-[![Build Status](https://travis-ci.org/Insolita/unused-scanner.svg?branch=master)](https://travis-ci.org/Insolita/unused-scanner)
+![unused-scanner](https://github.com/Insolita/unused-scanner/workflows/unused-scanner/badge.svg?branch=master)
 
 ### Versions
 
diff --git a/composer.json b/composer.json
index 01e211c..195b5b5 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "nesbot/carbon":  ">=1.22"
     } ,
     "require-dev":       {
-        "phpunit/phpunit": "^7.0|^8.0",
+        "phpunit/phpunit": "^7.0|^8.0|^9.0",
         "symfony/thanks": "^1.2"
     } ,
     "bin":               [