@@ -31,7 +31,7 @@
"ext-openssl": "To use Security::encrypt() or have secure CSRF token generation."
},
"require-dev": {
- "phpunit/phpunit": "*",
+ "phpunit/phpunit": "^5.7|^6.0",
"cakephp/cakephp-codesniffer": "~2.1"
"autoload": {