diff --git a/src/LinearBackOff.php b/src/LinearBackOff.php
index acddc23..42a8214 100644
--- a/src/LinearBackOff.php
+++ b/src/LinearBackOff.php
@@ -18,7 +18,7 @@ public function __construct(
         Duration $baseTime,
         Duration $capTime,
         ?JitterInterface $jitter = null,
-        ?SleeperInterface $sleeper = null
+        ?SleeperInterface $sleeper = null,
     ) {
         $strategy = new LinearStrategy();
         $jitter ??= new NullJitter();
diff --git a/src/Retry/ExceptionClassifier/CallbackExceptionClassifier.php b/src/Retry/ExceptionClassifier/CallbackExceptionClassifier.php
index bd0e24a..bfe42bf 100644
--- a/src/Retry/ExceptionClassifier/CallbackExceptionClassifier.php
+++ b/src/Retry/ExceptionClassifier/CallbackExceptionClassifier.php
@@ -19,7 +19,7 @@ public function classify(\Throwable $throwable): bool
         $result = ($this->callback)($throwable);
 
         if (!\is_bool($result)) {
-            throw new \RuntimeException(sprintf('Callback must return bool, %s given.', get_debug_type($result)));
+            throw new \RuntimeException(\sprintf('Callback must return bool, %s given.', get_debug_type($result)));
         }
 
         return $result;
diff --git a/src/Retry/ExceptionClassifier/ExceptionClassifier.php b/src/Retry/ExceptionClassifier/ExceptionClassifier.php
index 688ef09..6c9db4c 100644
--- a/src/Retry/ExceptionClassifier/ExceptionClassifier.php
+++ b/src/Retry/ExceptionClassifier/ExceptionClassifier.php
@@ -31,7 +31,7 @@ public function __construct(array $classNames = [])
     private function add(string $className): void
     {
         if (!class_exists($className) || !is_a($className, \Throwable::class, true)) {
-            throw new \InvalidArgumentException(sprintf('Exception class must be a class that exists and can be thrown, "%s" given.', get_debug_type($className))); // @codeCoverageIgnore
+            throw new \InvalidArgumentException(\sprintf('Exception class must be a class that exists and can be thrown, "%s" given.', get_debug_type($className))); // @codeCoverageIgnore
         }
 
         $this->classNames[] = $className;
diff --git a/tests/Retry/RetryTest.php b/tests/Retry/RetryTest.php
index d11145a..d0e036f 100644
--- a/tests/Retry/RetryTest.php
+++ b/tests/Retry/RetryTest.php
@@ -45,7 +45,7 @@ classNames: [
 
         try {
             $retry->call(new CallbackSpy(static function (int $counter): never {
-                throw new \RuntimeException(sprintf('Exception thrown %d times.', $counter));
+                throw new \RuntimeException(\sprintf('Exception thrown %d times.', $counter));
             }));
         } catch (\RuntimeException $e) {
             $this->assertSame('Exception thrown 2 times.', $e->getMessage());