diff --git a/.travis.yml b/.travis.yml
index 1af2656..37133b9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,8 +1,8 @@
 language: php
 
 php:
-  - 7.2
   - 7.3
+  - 7.4
 
 env:
   global:
@@ -36,7 +36,6 @@ install:
   - composer update ${COMPOSER_FLAGS} --no-interaction --prefer-source
 
 script:
-  - php vendor/bin/phpcs --config-set ignore_warnings_on_exit 1
   - php vendor/bin/phpcs
   - vendor/bin/phpunit --coverage-text --coverage-clover=coverage.clover
 
diff --git a/composer.json b/composer.json
index 6239036..b4d9ef8 100644
--- a/composer.json
+++ b/composer.json
@@ -9,7 +9,7 @@
     "ext-json": "*"
   },
   "require-dev": {
-    "phpunit/phpunit": "^8.0",
+    "phpunit/phpunit": "^9.0",
     "orchestra/testbench": "^4.0",
     "squizlabs/php_codesniffer": "^3.4"
   },