diff --git a/composer.json b/composer.json
index 394cdf8..cc62f8f 100644
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
     },
     "require-dev": {
         "react-parallel/stubs": "^1.2",
-        "wyrihaximus/async-test-utilities": "^9.3.0",
+        "wyrihaximus/async-test-utilities": "^10.1.0",
         "wyrihaximus/makefiles": "^0.5.0",
         "wyrihaximus/ticking-promise": "^3.1.0"
     },