diff --git a/src/Attribute/OnEvent.php b/src/Attribute/OnEvent.php
index 6d3d54c..165ec8a 100644
--- a/src/Attribute/OnEvent.php
+++ b/src/Attribute/OnEvent.php
@@ -12,6 +12,9 @@
     public string $event;
     public int $priority;
 
+    /**
+     * @param class-string<Event> $event
+     */
     public function __construct(string $event, int $priority = 0)
     {
         $this->event = $event;
diff --git a/src/LongPollingService.php b/src/LongPollingService.php
index 24bb531..5d691ec 100644
--- a/src/LongPollingService.php
+++ b/src/LongPollingService.php
@@ -40,7 +40,7 @@ public function setTimeLimit(int $timeLimit): void
     public function cunsumeUpdates(): \Generator
     {
         $start = \hrtime()[0];
-        $checkTimeLimit = fn() => $this->timeLimit > 0 && \hrtime()[0] - $start >= $this->timeLimit;
+        $checkTimeLimit = static fn() => $this->timeLimit > 0 && \hrtime()[0] - $start >= $this->timeLimit;
 
         while (true) {
             foreach ($this->getUpdates() as $update) {
diff --git a/src/config/compilerpass.php b/src/config/compilerpass.php
index 49bb6cc..f7ac858 100644
--- a/src/config/compilerpass.php
+++ b/src/config/compilerpass.php
@@ -27,10 +27,10 @@ public function process(ContainerBuilder $container): void
         }
 
         // Commands have the highest priority by default
-        \usort($controllersMap, fn(array $a, array $b) => \str_starts_with($a['value'], '/') ? -1 : 1);
+        \usort($controllersMap, static fn(array $a, array $b) => \str_starts_with($a['value'], '/') ? -1 : 1);
 
         // Sort by priority
-        \usort($controllersMap, fn(array $a, array $b) => $b['priority'] <=> $a['priority']);
+        \usort($controllersMap, static fn(array $a, array $b) => $b['priority'] <=> $a['priority']);
 
         foreach ($controllersMap as $id => $row) {
             unset($controllersMap[$id]['priority']);