diff --git a/composer.json b/composer.json
index 242b91f..335b526 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "clue/redis-protocol": "0.3.*",
         "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
         "react/event-loop": "^1.2",
-        "react/promise": "^3 || ^2.0 || ^1.1",
+        "react/promise": "^3",
         "react/promise-timer": "^1.10",
         "react/socket": "^1.15"
     },
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
index fb725aa..be4a66a 100644
--- a/phpstan.neon.dist
+++ b/phpstan.neon.dist
@@ -6,10 +6,7 @@ parameters:
         - src/
         - tests/
 
-    reportUnmatchedIgnoredErrors: false
     ignoreErrors:
-        # ignore generic usage like `PromiseInterface<T>` for Promise v2/v1
-        - '/^PHPDoc tag @return contains generic type React\\Promise\\PromiseInterface<.+> but interface React\\Promise\\PromiseInterface is not generic\.$/'
         # ignore undefined methods due to magic `__call()` method
         - '/^Call to an undefined method Clue\\React\\Redis\\RedisClient::.+\(\)\.$/'
         - '/^Call to an undefined method Clue\\React\\Redis\\Io\\StreamingClient::.+\(\)\.$/'
diff --git a/tests/TestCase.php b/tests/TestCase.php
index 483864d..722c8b6 100644
--- a/tests/TestCase.php
+++ b/tests/TestCase.php
@@ -2,7 +2,6 @@
 
 namespace Clue\Tests\React\Redis;
 
-use PHPUnit\Framework\MockObject\MockBuilder;
 use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase as BaseTestCase;
 use React\Promise\PromiseInterface;
@@ -39,12 +38,12 @@ protected function expectCallableNever(): callable
 
     protected function createCallableMock(): MockObject
     {
-        if (method_exists(MockBuilder::class, 'addMethods')) {
-            // @phpstan-ignore-next-line requires PHPUnit 9+
-            return $this->getMockBuilder(\stdClass::class)->addMethods(['__invoke'])->getMock();
+        $builder = $this->getMockBuilder(\stdClass::class);
+        if (method_exists($builder, 'addMethods')) {
+            return $builder->addMethods(['__invoke'])->getMock();
         } else {
             // legacy PHPUnit < 9
-            return $this->getMockBuilder(\stdClass::class)->setMethods(['__invoke'])->getMock();
+            return $builder->setMethods(['__invoke'])->getMock();
         }
     }