diff --git a/src/Barrier.php b/src/Barrier.php
index b7c01f5..f25c8f9 100644
--- a/src/Barrier.php
+++ b/src/Barrier.php
@@ -31,9 +31,7 @@ final class Barrier
     private readonly DeferredFuture $completion;
 
     /**
-     * @param int $count
-     *
-     * @psalm-param positive-int $count
+     * @param positive-int $count
      */
     public function __construct(int $count)
     {
@@ -52,9 +50,7 @@ public function getCount(): int
     }
 
     /**
-     * @param int $count
-     *
-     * @psalm-param positive-int $count
+     * @param positive-int $count
      */
     public function arrive(int $count = 1): void
     {
@@ -75,9 +71,7 @@ public function arrive(int $count = 1): void
     }
 
     /**
-     * @param int $count
-     *
-     * @psalm-param positive-int $count
+     * @param positive-int $count
      */
     public function register(int $count = 1): void
     {
diff --git a/src/SharedMemoryParcel.php b/src/SharedMemoryParcel.php
index 3014788..e170814 100644
--- a/src/SharedMemoryParcel.php
+++ b/src/SharedMemoryParcel.php
@@ -48,14 +48,10 @@ final class SharedMemoryParcel implements Parcel
     /**
      * @param Mutex $mutex Mutex to control access to the shared memory. Recommended: Since lock {@see PosixSemaphore}
      * wrapped in an instance of {@see SemaphoreMutex}.
-     * @param mixed $value
      * @param int $size The initial size in bytes of the shared memory segment. It will automatically be
      *     expanded as necessary.
      * @param int $permissions Permissions to access the semaphore. Use file permission format specified as
      *     0xxx.
-     * @param Serializer|null $serializer
-     *
-     * @return self
      *
      * @throws ParcelException
      * @throws SyncException
@@ -82,11 +78,7 @@ public static function create(
     }
 
     /**
-     * @param Mutex $mutex
      * @param int $key Use {@see getKey()} on the creating process and send this key to another process.
-     * @param Serializer|null $serializer
-     *
-     * @return self
      *
      * @throws ParcelException
      */
@@ -110,10 +102,6 @@ public static function use(Mutex $mutex, int $key, ?Serializer $serializer = nul
 
     private readonly Serializer $serializer;
 
-    /**
-     * @param int $key
-     * @param Serializer|null $serializer
-     */
     private function __construct(int $key, Mutex $mutex, ?Serializer $serializer = null)
     {
         if (!\extension_loaded("shmop")) {
@@ -189,10 +177,6 @@ public function __sleep()
     }
 
     /**
-     * @param mixed $value
-     * @param int $size
-     * @param int $permissions
-     *
      * @throws ParcelException
      * @throws \Error If the size or permissions are invalid.
      */
@@ -231,8 +215,6 @@ private function isFreed(): bool
     }
 
     /**
-     * @return mixed
-     *
      * @throws ParcelException
      * @throws SerializationException
      */
diff --git a/src/functions.php b/src/functions.php
index 11f2deb..7190432 100644
--- a/src/functions.php
+++ b/src/functions.php
@@ -12,9 +12,7 @@
  *
  * @template T
  *
- * @param Mutex $mutex
- * @param \Closure(...mixed):T $synchronized
- * @param mixed ...$args
+ * @param \Closure(...):T $synchronized
  *
  * @return T The return value of the Closure.
  */
diff --git a/test/AbstractSemaphoreTest.php b/test/AbstractSemaphoreTest.php
index b7e6db5..f8f75c3 100644
--- a/test/AbstractSemaphoreTest.php
+++ b/test/AbstractSemaphoreTest.php
@@ -13,8 +13,6 @@ abstract class AbstractSemaphoreTest extends AsyncTestCase
 
     /**
      * @param int $locks Number of locks in the semaphore.
-     *
-     * @return Semaphore
      */
     abstract public function createSemaphore(int $locks): Semaphore;
 
diff --git a/test/PosixSemaphoreTest.php b/test/PosixSemaphoreTest.php
index 2577c40..7f49850 100644
--- a/test/PosixSemaphoreTest.php
+++ b/test/PosixSemaphoreTest.php
@@ -38,12 +38,7 @@ public function tearDown(): void
         delay(1);
     }
 
-    /**
-     * @param int $locks
-     *
-     * @return PosixSemaphore
-     */
-    public function createSemaphore(int $locks): Semaphore
+    public function createSemaphore(int $locks): PosixSemaphore
     {
         return PosixSemaphore::create($locks);
     }