diff --git a/assets/config.php b/assets/config.php
index 67cd0da1..8d17f8a9 100644
--- a/assets/config.php
+++ b/assets/config.php
@@ -10,10 +10,10 @@ return [
     'id_generator' => Stancl\Tenancy\UUIDGenerator::class,
 
     'domain_model' => Domain::class,
-    
+
     /**
      * The list of domains hosting your central app.
-     * 
+     *
      * Only relevant if you're using the domain or subdomain identification middleware.
      */
     'central_domains' => [
diff --git a/src/Database/Concerns/EnsuresDomainIsNotOccupied.php b/src/Database/Concerns/EnsuresDomainIsNotOccupied.php
index a63e2c00..2b1c56ee 100644
--- a/src/Database/Concerns/EnsuresDomainIsNotOccupied.php
+++ b/src/Database/Concerns/EnsuresDomainIsNotOccupied.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Stancl\Tenancy\Database\Concerns;
 
 use Stancl\Tenancy\Exceptions\DomainOccupiedByOtherTenantException;
diff --git a/src/Database/Concerns/HasInternalKeys.php b/src/Database/Concerns/HasInternalKeys.php
index 1ddf5846..b4e175c3 100644
--- a/src/Database/Concerns/HasInternalKeys.php
+++ b/src/Database/Concerns/HasInternalKeys.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Stancl\Tenancy\Database\Concerns;
 
 trait HasInternalKeys
@@ -29,4 +31,4 @@ trait HasInternalKeys
 
         return $this;
     }
-}
\ No newline at end of file
+}
diff --git a/src/Database/Concerns/TenantRun.php b/src/Database/Concerns/TenantRun.php
index 36cf44e5..0e4c9ddf 100644
--- a/src/Database/Concerns/TenantRun.php
+++ b/src/Database/Concerns/TenantRun.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 namespace Stancl\Tenancy\Database\Concerns;
 
 use Stancl\Tenancy\Contracts\Tenant;
@@ -9,7 +11,6 @@ trait TenantRun
     public function run(callable $callback)
     {
         /** @var Tenant $this */
-
         $originalTenant = tenant();
 
         tenancy()->initialize($this);