diff --git a/composer.json b/composer.json
index 2e69a28..c71fd1c 100644
--- a/composer.json
+++ b/composer.json
@@ -40,7 +40,7 @@
     "adriansuter/php-autoload-override": "^1.2",
     "http-interop/http-factory-tests": "^0.9.0",
     "php-http/psr7-integration-tests": "dev-master",
-    "phpspec/prophecy": "^1.14",
+    "phpspec/prophecy": "^1.15",
     "phpspec/prophecy-phpunit": "^2.0",
     "phpstan/phpstan": "^1.3",
     "phpunit/phpunit": "^9.5",