diff --git a/src/SchemalessAttributes.php b/src/SchemalessAttributes.php
index ff7e7d9..bbdd9ea 100644
--- a/src/SchemalessAttributes.php
+++ b/src/SchemalessAttributes.php
@@ -12,6 +12,7 @@
 use Illuminate\Support\Collection;
 use IteratorAggregate;
 use JsonSerializable;
+use Traversable;
 
 /**
  * @mixin Collection
@@ -52,19 +53,19 @@ public function __get($name)
         return $this->get($name);
     }
 
-    public function __set($name, $value)
+    public function __set($name, $value): void
     {
         $this->set($name, $value);
     }
 
-    public function __isset($name)
+    public function __isset($name): bool
     {
         $property = $this->get($name);
 
         return isset($property);
     }
 
-    public function __empty($name)
+    public function __empty($name): bool
     {
         $property = $this->get($name);
 
@@ -128,47 +129,47 @@ public function modelScope(): Builder
         return $builder;
     }
 
-    public function offsetGet($offset)
+    public function offsetGet($offset): mixed
     {
         return $this->get($offset);
     }
 
-    public function offsetExists($offset)
+    public function offsetExists($offset): bool
     {
         return $this->collection->offsetExists($offset);
     }
 
-    public function offsetSet($offset, $value)
+    public function offsetSet($offset, $value): void
     {
         $this->set($offset, $value);
     }
 
-    public function offsetUnset($offset)
+    public function offsetUnset($offset): void
     {
         $this->forget($offset);
     }
 
-    public function toArray()
+    public function toArray(): array
     {
         return $this->collection->toArray();
     }
 
-    public function toJson($options = 0)
+    public function toJson($options = 0): string
     {
         return $this->collection->toJson($options);
     }
 
-    public function jsonSerialize()
+    public function jsonSerialize(): mixed
     {
         return $this->collection->jsonSerialize();
     }
 
-    public function count()
+    public function count(): int
     {
         return $this->collection->count();
     }
 
-    public function getIterator()
+    public function getIterator(): Traversable
     {
         return $this->collection->getIterator();
     }
diff --git a/src/SchemalessAttributesServiceProvider.php b/src/SchemalessAttributesServiceProvider.php
index 457c9a2..ea7097b 100644
--- a/src/SchemalessAttributesServiceProvider.php
+++ b/src/SchemalessAttributesServiceProvider.php
@@ -14,7 +14,7 @@ public function configurePackage(Package $package): void
             ->name('laravel-schemaless-attributes');
     }
 
-    public function registeringPackage()
+    public function registeringPackage(): void
     {
         Blueprint::macro('schemalessAttributes', function (string $columnName = 'schemaless_attributes') {
             return $this->json($columnName)->nullable();