diff --git a/composer.json b/composer.json
index ac5be9f0..55034dd5 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
   "name": "icingaweb2-director",
   "require-dev": {
-    "phpunit/phpunit": ">= 5",
+    "phpunit/phpunit": ">= 4.8",
     "icinga/icingaweb2": ">= 2.3",
     "squizlabs/php_codesniffer": ">= 2"
   },