diff --git a/lib/EmitterInterface.php b/lib/EmitterInterface.php
index 1f0d920..05b0513 100644
--- a/lib/EmitterInterface.php
+++ b/lib/EmitterInterface.php
@@ -47,7 +47,7 @@ public function once(string $eventName, callable $callBack, int $priority = 100)
      * Lastly, if there are 5 event handlers for an event. The continueCallback
      * will be called at most 4 times.
      *
-     * @param array<int, mixed>    $arguments
+     * @param list<mixed>          $arguments
      * @param callable():bool|null $continueCallBack
      */
     public function emit(string $eventName, array $arguments = [], callable $continueCallBack = null): bool;
diff --git a/lib/EmitterTrait.php b/lib/EmitterTrait.php
index fdd376d..a53a7a9 100644
--- a/lib/EmitterTrait.php
+++ b/lib/EmitterTrait.php
@@ -172,7 +172,7 @@ public function removeAllListeners(string $eventName = null): void
     /**
      * The list of listeners.
      *
-     * @var array<string, array{0:boolean, 1:array<int, mixed>, 2:array<int, callable>}>
+     * @var array<string, array{0:boolean, 1:list<mixed>, 2:list<callable>}>
      */
     protected array $listeners = [];
 }
diff --git a/lib/Loop/Loop.php b/lib/Loop/Loop.php
index 5a9ef5d..2f9bdaa 100644
--- a/lib/Loop/Loop.php
+++ b/lib/Loop/Loop.php
@@ -61,7 +61,7 @@ public function setTimeout(callable $cb, float $timeout): void
      * The value this function returns can be used to stop the interval with
      * clearInterval.
      *
-     * @return array<int, mixed>
+     * @return IntervalStatus
      */
     public function setInterval(callable $cb, float $timeout): array
     {
@@ -88,7 +88,7 @@ public function setInterval(callable $cb, float $timeout): array
     /**
      * Stops a running interval.
      *
-     * @param array<int, mixed> $intervalId
+     * @param IntervalStatus $intervalId
      */
     public function clearInterval(array $intervalId): void
     {
@@ -302,7 +302,7 @@ protected function runStreams(?float $timeout): void
     /**
      * A list of timers, added by setTimeout.
      *
-     * @var array<int, array{0:float, 1:callable}>
+     * @var list<array{0:float, 1:callable}>
      */
     protected array $timers = [];
 
diff --git a/lib/Loop/functions.php b/lib/Loop/functions.php
index 541427d..216c0e6 100644
--- a/lib/Loop/functions.php
+++ b/lib/Loop/functions.php
@@ -18,7 +18,7 @@ function setTimeout(callable $cb, float $timeout): void
  * The value this function returns can be used to stop the interval with
  * clearInterval.
  *
- * @return array<int, mixed>
+ * @return IntervalStatus
  */
 function setInterval(callable $cb, float $timeout): array
 {
@@ -28,7 +28,7 @@ function setInterval(callable $cb, float $timeout): array
 /**
  * Stops a running interval.
  *
- * @param array<int, mixed> $intervalId
+ * @param IntervalStatus $intervalId
  */
 function clearInterval(array $intervalId): void
 {
diff --git a/lib/Promise.php b/lib/Promise.php
index 4c86ee2..5d6e3b1 100644
--- a/lib/Promise.php
+++ b/lib/Promise.php
@@ -202,7 +202,7 @@ public function wait()
      * A list of subscribers. Subscribers are the callbacks that want us to let
      * them know if the callback was fulfilled or rejected.
      *
-     * @var array<int, array{0:Promise<TReturn>, 1:callable|null, 2:callable|null}>
+     * @var list<array{0:Promise<TReturn>, 1:callable|null, 2:callable|null}>
      */
     protected array $subscribers = [];
 
diff --git a/lib/WildcardEmitterTrait.php b/lib/WildcardEmitterTrait.php
index af8432f..1a4c69c 100644
--- a/lib/WildcardEmitterTrait.php
+++ b/lib/WildcardEmitterTrait.php
@@ -216,14 +216,14 @@ public function removeAllListeners(string $eventName = null): void
     /**
      * The list of listeners.
      *
-     * @var array<string, array<int, array{0:int, 1:callable}>>
+     * @var array<string, list<array{0:int, 1:callable}>>
      */
     protected array $listeners = [];
 
     /**
      * The list of "wildcard listeners".
      *
-     * @var array<string, array<int, array{0:int, 1:callable}>>
+     * @var array<string, list<array{0:int, 1:callable}>>
      */
     protected array $wildcardListeners = [];
 
@@ -233,7 +233,7 @@ public function removeAllListeners(string $eventName = null): void
      *
      * If the list of listeners changes though, the index clears.
      *
-     * @var array<string, array<int, callable>>
+     * @var array<string, list<callable>>
      */
     protected array $listenerIndex = [];
 }
diff --git a/phpstan.neon b/phpstan.neon
index 4b77189..a52fa03 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,6 +1,8 @@
 parameters:
   level: 9
   phpVersion: 70430 # PHP 7.4.30
+  typeAliases:
+    IntervalStatus: 'array{0:string, 1:boolean}'
   ignoreErrors:
   -
     message: "#^If condition is always true.$#"