diff --git a/src/Mockery/PhpDoc/TypeNodeResolverExtension.php b/src/Mockery/PhpDoc/TypeNodeResolverExtension.php
index 183d196..ca936aa 100644
--- a/src/Mockery/PhpDoc/TypeNodeResolverExtension.php
+++ b/src/Mockery/PhpDoc/TypeNodeResolverExtension.php
@@ -9,7 +9,6 @@
 use PHPStan\PhpDocParser\Ast\Type\UnionTypeNode;
 use PHPStan\Type\Type;
 use PHPStan\Type\TypeCombinator;
-use PHPStan\Type\TypeWithClassName;
 use function count;
 
 class TypeNodeResolverExtension implements \PHPStan\PhpDoc\TypeNodeResolverExtension, TypeNodeResolverAwareExtension
@@ -36,13 +35,14 @@ public function resolve(TypeNode $typeNode, NameScope $nameScope): ?Type
 
 		$types = $this->typeNodeResolver->resolveMultiple($typeNode->types, $nameScope);
 		foreach ($types as $type) {
-			if (!$type instanceof TypeWithClassName) {
+			$classNames = $type->getObjectClassNames();
+			if (count($classNames) !== 1) {
 				continue;
 			}
 
 			if (
 				count($types) === 2
-				&& $type->getClassName() === 'Mockery\\MockInterface'
+				&& $classNames[0] === 'Mockery\\MockInterface'
 			) {
 				return TypeCombinator::intersect(...$types);
 			}
diff --git a/src/Mockery/Type/MockDynamicNamedMockReturnTypeExtension.php b/src/Mockery/Type/MockDynamicNamedMockReturnTypeExtension.php
index 67d8c04..ed51007 100644
--- a/src/Mockery/Type/MockDynamicNamedMockReturnTypeExtension.php
+++ b/src/Mockery/Type/MockDynamicNamedMockReturnTypeExtension.php
@@ -5,7 +5,6 @@
 use PhpParser\Node\Expr\StaticCall;
 use PHPStan\Analyser\Scope;
 use PHPStan\Reflection\MethodReflection;
-use PHPStan\Type\Constant\ConstantStringType;
 use PHPStan\Type\DynamicStaticMethodReturnTypeExtension;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\Type;
@@ -46,11 +45,12 @@ public function getTypeFromStaticMethodCall(
 		$types = [$defaultReturnType];
 		foreach ($args as $arg) {
 			$classType = $scope->getType($arg->value);
-			if (!$classType instanceof ConstantStringType) {
+			$constantStrings = $classType->getConstantStrings();
+			if (count($constantStrings) !== 1) {
 				continue;
 			}
 
-			$value = $classType->getValue();
+			$value = $constantStrings[0]->getValue();
 			if (substr($value, 0, 6) === 'alias:') {
 				$value = substr($value, 6);
 			}
diff --git a/src/Mockery/Type/MockDynamicReturnTypeExtension.php b/src/Mockery/Type/MockDynamicReturnTypeExtension.php
index ce4aa94..e2913e3 100644
--- a/src/Mockery/Type/MockDynamicReturnTypeExtension.php
+++ b/src/Mockery/Type/MockDynamicReturnTypeExtension.php
@@ -5,7 +5,6 @@
 use PhpParser\Node\Expr\StaticCall;
 use PHPStan\Analyser\Scope;
 use PHPStan\Reflection\MethodReflection;
-use PHPStan\Type\Constant\ConstantStringType;
 use PHPStan\Type\DynamicStaticMethodReturnTypeExtension;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\Type;
@@ -47,11 +46,12 @@ public function getTypeFromStaticMethodCall(
 		$types = [$defaultReturnType];
 		foreach ($methodCall->getArgs() as $arg) {
 			$classType = $scope->getType($arg->value);
-			if (!$classType instanceof ConstantStringType) {
+			$constantStrings = $classType->getConstantStrings();
+			if (count($constantStrings) !== 1) {
 				continue;
 			}
 
-			$value = $classType->getValue();
+			$value = $constantStrings[0]->getValue();
 			if (substr($value, 0, 6) === 'alias:') {
 				$value = substr($value, 6);
 			}
diff --git a/src/Mockery/Type/StubDynamicReturnTypeExtension.php b/src/Mockery/Type/StubDynamicReturnTypeExtension.php
index 5d7bbdb..250b797 100644
--- a/src/Mockery/Type/StubDynamicReturnTypeExtension.php
+++ b/src/Mockery/Type/StubDynamicReturnTypeExtension.php
@@ -5,12 +5,11 @@
 use PhpParser\Node\Expr\MethodCall;
 use PHPStan\Analyser\Scope;
 use PHPStan\Reflection\MethodReflection;
-use PHPStan\Reflection\ParametersAcceptorSelector;
 use PHPStan\Type\DynamicMethodReturnTypeExtension;
-use PHPStan\Type\IntersectionType;
 use PHPStan\Type\ObjectType;
 use PHPStan\Type\Type;
-use PHPStan\Type\TypeWithClassName;
+use function array_filter;
+use function array_values;
 use function count;
 
 class StubDynamicReturnTypeExtension implements DynamicMethodReturnTypeExtension
@@ -38,16 +37,14 @@ public function isMethodSupported(MethodReflection $methodReflection): bool
 		return $methodReflection->getName() === $this->stubMethodName;
 	}
 
-	public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): Type
+	public function getTypeFromMethodCall(MethodReflection $methodReflection, MethodCall $methodCall, Scope $scope): ?Type
 	{
-		$calledOnType = $scope->getType($methodCall->var);
-		$defaultType = ParametersAcceptorSelector::selectSingle($methodReflection->getVariants())->getReturnType();
-		if (!$calledOnType instanceof IntersectionType || count($calledOnType->getTypes()) !== 2) {
-			return $defaultType;
-		}
-		$mockedType = $calledOnType->getTypes()[1];
-		if (!$mockedType instanceof TypeWithClassName) {
-			return $defaultType;
+		$calledOnType = $scope->getType($methodCall->var)->getObjectClassNames();
+		$names = array_values(array_filter($calledOnType, static function (string $name) {
+			return $name !== 'Mockery\\MockInterface';
+		}));
+		if (count($names) !== 1) {
+			return null;
 		}
 
 		return new ObjectType($this->stubInterfaceName);