diff --git a/composer.json b/composer.json
index 5a720a0..0d72f31 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
         "queue-interop/queue-interop": "^0.8.1"
     },
     "require-dev": {
-        "wyrihaximus/test-utilities": "^5.6"
+        "wyrihaximus/test-utilities": "^8.5.0"
     },
     "autoload": {
         "psr-4": {