diff --git a/composer.json b/composer.json
index 2d1d772..7084724 100644
--- a/composer.json
+++ b/composer.json
@@ -38,7 +38,7 @@
   "name": "potherca/phpunit-testcase-traits",
   "require": {
     "php": "~5.3 | ~7.0",
-    "phpunit/phpunit": "~4.0 | ~5.0 | ~6.0"
+    "phpunit/phpunit": "11.1.3"
   },
   "type": "library"
 }