diff --git a/composer.json b/composer.json
index 4000dd8941f..fca08e8e8b2 100644
--- a/composer.json
+++ b/composer.json
@@ -19,6 +19,7 @@
     "support": {
         "issues": "https://github.com/sebastianbergmann/phpunit/issues"
     },
+    "minimum-stability": "dev",
     "prefer-stable": true,
     "require": {
         "php": ">=7.3",
@@ -47,7 +48,7 @@
         "sebastian/global-state": "^5.0.1",
         "sebastian/object-enumerator": "^4.0.3",
         "sebastian/resource-operations": "^3.0.3",
-        "sebastian/type": "^2.3.4",
+        "sebastian/type": "^3.0",
         "sebastian/version": "^3.0.2"
     },
     "require-dev": {
diff --git a/src/Framework/MockObject/MockMethod.php b/src/Framework/MockObject/MockMethod.php
index 17b914115e2..4343edd1a29 100644
--- a/src/Framework/MockObject/MockMethod.php
+++ b/src/Framework/MockObject/MockMethod.php
@@ -139,7 +139,7 @@ public static function fromReflection(ReflectionMethod $method, bool $callOrigin
             $modifier,
             self::getMethodParametersForDeclaration($method),
             self::getMethodParametersForCall($method),
-            (new ReflectionMapper)->fromMethodReturnType($method),
+            (new ReflectionMapper)->fromReturnType($method),
             $reference,
             $callOriginalMethod,
             $method->isStatic(),