diff --git a/composer.json b/composer.json
index c81fc6a..76ad670 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
         "antecedent/patchwork": "^2.1.17"
     },
     "require-dev": {
-        "phpunit/phpunit": "^5.7.9 || ^6.0 || ^7.0 || >=8.0 <8.5.12 || ^8.5.14 || ^9.0",
+        "phpunit/phpunit": "^5.7.26 || ^6.0 || ^7.0 || >=8.0 <8.5.12 || ^8.5.14 || ^9.0",
         "phpcompatibility/php-compatibility": "^9.3.0",
         "dealerdirect/phpcodesniffer-composer-installer": "^0.7.1"
     },