diff --git a/composer.json b/composer.json
index baeec8ec..8ec0440a 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "illuminate/support": "^10.0|^11.0",
         "nesbot/carbon": "^2.67|^3.0",
         "pestphp/pest": "^2.36",
-        "phpstan/phpstan": "^1.11.5",
+        "phpstan/phpstan": "^2.0",
         "symfony/var-dumper": "^6.2.0|^7.0.0"
     },
     "autoload": {
diff --git a/phpstan.neon b/phpstan.neon
index a8ba1c62..fc62d2bc 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -7,5 +7,5 @@ parameters:
         - identifier: missingType.generics
     reportUnmatchedIgnoredErrors: true
     excludePaths:
-        - 'src/Support/ReflectionClosure'
-        - 'src/Serializers/Native'
+        - 'src/Support/ReflectionClosure.php'
+        - 'src/Serializers/Native.php'
diff --git a/src/SerializableClosure.php b/src/SerializableClosure.php
index dff7fb88..83a96320 100644
--- a/src/SerializableClosure.php
+++ b/src/SerializableClosure.php
@@ -98,7 +98,7 @@ public static function resolveUseVariablesUsing($resolver)
     /**
      * Get the serializable representation of the closure.
      *
-     * @return array
+     * @return array{serializable: \Laravel\SerializableClosure\Serializers\Signed|\Laravel\SerializableClosure\Contracts\Serializable}
      */
     public function __serialize()
     {
@@ -110,7 +110,7 @@ public function __serialize()
     /**
      * Restore the closure after serialization.
      *
-     * @param  array  $data
+     * @param  array{serializable: \Laravel\SerializableClosure\Serializers\Signed|\Laravel\SerializableClosure\Contracts\Serializable}  $data
      * @return void
      *
      * @throws \Laravel\SerializableClosure\Exceptions\InvalidSignatureException
diff --git a/src/Serializers/Signed.php b/src/Serializers/Signed.php
index 391d20d6..16f9593f 100644
--- a/src/Serializers/Signed.php
+++ b/src/Serializers/Signed.php
@@ -72,7 +72,7 @@ public function __serialize()
     /**
      * Restore the closure after serialization.
      *
-     * @param  array  $signature
+     * @param  array{serializable: string, hash: string}  $signature
      * @return void
      *
      * @throws \Laravel\SerializableClosure\Exceptions\InvalidSignatureException
diff --git a/src/Signers/Hmac.php b/src/Signers/Hmac.php
index d94b0a2a..41ed01ae 100644
--- a/src/Signers/Hmac.php
+++ b/src/Signers/Hmac.php
@@ -41,7 +41,7 @@ public function sign($serialized)
     /**
      * Verify the given signature.
      *
-     * @param  array  $signature
+     * @param  array{serializable: string, hash: string}  $signature
      * @return bool
      */
     public function verify($signature)
diff --git a/src/Support/ClosureStream.php b/src/Support/ClosureStream.php
index 9f3ef6c8..717ae053 100644
--- a/src/Support/ClosureStream.php
+++ b/src/Support/ClosureStream.php
@@ -7,6 +7,8 @@ class ClosureStream
 {
     /**
      * The stream protocol.
+     *
+     * @var string
      */
     const STREAM_PROTO = 'laravel-serializable-closure';
 
diff --git a/src/UnsignedSerializableClosure.php b/src/UnsignedSerializableClosure.php
index f487d6d7..afc2127e 100644
--- a/src/UnsignedSerializableClosure.php
+++ b/src/UnsignedSerializableClosure.php
@@ -47,7 +47,7 @@ public function getClosure()
     /**
      * Get the serializable representation of the closure.
      *
-     * @return array
+     * @return array{serializable: \Laravel\SerializableClosure\Contracts\Serializable}
      */
     public function __serialize()
     {
@@ -59,7 +59,7 @@ public function __serialize()
     /**
      * Restore the closure after serialization.
      *
-     * @param  array  $data
+     * @param  array{serializable: \Laravel\SerializableClosure\Contracts\Serializable}  $data
      * @return void
      */
     public function __unserialize($data)