diff --git a/.github/workflows/quality-assurance.yaml b/.github/workflows/quality-assurance.yaml
index dd958f1..0368476 100644
--- a/.github/workflows/quality-assurance.yaml
+++ b/.github/workflows/quality-assurance.yaml
@@ -11,7 +11,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: [ '8.1', '8.2', '8.3' ]
+                php: [ '8.1', '8.2', '8.3', '8.4' ]
                 composer-flags: [ '' ]
                 phpunit-flags: [ '--coverage-text' ]
         steps:
@@ -28,7 +28,7 @@ jobs:
         runs-on: ubuntu-latest
         strategy:
             matrix:
-                php: [ '8.1', '8.2', '8.3' ]
+                php: [ '8.1', '8.2', '8.3', '8.4' ]
                 composer-flags: [ '' ]
         steps:
             - uses: actions/checkout@v2
diff --git a/phpstan.neon b/phpstan.neon
index 0865407..0ead9cd 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -3,8 +3,9 @@ parameters:
     paths:
         - src
         - tests
-    checkGenericClassInNonGenericObjectType: false
     ignoreErrors:
+        -
+            identifier: missingType.generics
         -
             message: '#type has no value type specified in iterable type array#'
             path: tests/
diff --git a/tests/Fakes/MockLogger.php b/tests/Fakes/MockLogger.php
index f4ca2b5..3b464d3 100644
--- a/tests/Fakes/MockLogger.php
+++ b/tests/Fakes/MockLogger.php
@@ -17,7 +17,7 @@ class MockLogger extends AbstractLogger
     /**
      * @param array<string, string> $context
      */
-    public function log($level, $message, array $context = []): void
+    public function log($level, string|\Stringable $message, array $context = []): void
     {
         $this->messages[$level][] = [
             'message' => $message,