diff --git a/src/CommandBus/Handler/ServiceNotResolvable.php b/src/CommandBus/Handler/ServiceNotResolvable.php
index 44a38281..7ff0f8ea 100644
--- a/src/CommandBus/Handler/ServiceNotResolvable.php
+++ b/src/CommandBus/Handler/ServiceNotResolvable.php
@@ -1,17 +1,23 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Patchlevel\EventSourcing\CommandBus\Handler;
 
 use RuntimeException;
 
+use function sprintf;
+
 final class ServiceNotResolvable extends RuntimeException
 {
-    public static function missingType(string $class, $propertyName): self
+    /** @param class-string $class */
+    public static function missingType(string $class, string $propertyName): self
     {
         return new self(sprintf('Missing type for property "%s" in class "%s"', $propertyName, $class));
     }
 
-    public static function typeNotObject(string $class, $propertyName): self
+    /** @param class-string $class */
+    public static function typeNotObject(string $class, string $propertyName): self
     {
         return new self(sprintf('Type for property "%s" in class "%s" must be object', $propertyName, $class));
     }
@@ -20,4 +26,4 @@ public static function missingContainer(): self
     {
         return new self('Container is not configured');
     }
-}
\ No newline at end of file
+}
diff --git a/tests/Integration/BasicImplementation/ProfileWithCommands.php b/tests/Integration/BasicImplementation/ProfileWithCommands.php
index da56535d..bf05247b 100644
--- a/tests/Integration/BasicImplementation/ProfileWithCommands.php
+++ b/tests/Integration/BasicImplementation/ProfileWithCommands.php
@@ -29,7 +29,8 @@ final class ProfileWithCommands extends BasicAggregateRoot
     public static function create(
         CreateProfile $command,
         ClockInterface $clock,
-        #[Inject('env')] string $env,
+        #[Inject('env')]
+        string $env,
     ): self {
         $self = new self();
         $self->recordThat(new ProfileCreated($command->id, $command->name));
@@ -41,7 +42,8 @@ public static function create(
     public function changeName(
         ChangeProfileName $command,
         ClockInterface $clock,
-        #[Inject('env')] string $env,
+        #[Inject('env')]
+        string $env,
     ): void {
         $this->recordThat(new NameChanged($command->name));
     }