diff --git a/src/Concerns/HasAccessTokens.php b/src/Concerns/HasAccessTokens.php
index dd15da8..a8404ca 100644
--- a/src/Concerns/HasAccessTokens.php
+++ b/src/Concerns/HasAccessTokens.php
@@ -20,7 +20,7 @@ public function tokenCan(string $ability): bool
         return $this->accessToken ? $this->accessToken->can($ability) : false;
     }
 
-    public function createToken(array $abilities = ['*'], string $name = null)
+    public function createToken(array $abilities = ['*'], ?string $name = null)
     {
         $token = $this->tokens()->create([
             'token' => hash('sha256', $plainToken = str()->random(40)),
diff --git a/src/Contracts/HasAccessTokens.php b/src/Contracts/HasAccessTokens.php
index 24e153e..501a84c 100644
--- a/src/Contracts/HasAccessTokens.php
+++ b/src/Contracts/HasAccessTokens.php
@@ -8,7 +8,7 @@ public function tokens();
 
     public function tokenCan(string $ability): bool;
 
-    public function createToken(array $abilities = ['*'], string $name = null);
+    public function createToken(array $abilities = ['*'], ?string $name = null);
 
     public function currentAccessToken(): HasAbilities;
 
diff --git a/src/Guard.php b/src/Guard.php
index 78ff7a7..31c9a44 100644
--- a/src/Guard.php
+++ b/src/Guard.php
@@ -43,7 +43,7 @@ protected function findAccessToken(string $plainToken): ?AccessToken
         return $accessToken;
     }
 
-    protected function supportsTokens(Model $tokenable = null): bool
+    protected function supportsTokens(?Model $tokenable = null): bool
     {
         return $tokenable && $tokenable instanceof HasAccessTokens;
     }
diff --git a/src/Jobs/UpdateAccessTokensLastUsed.php b/src/Jobs/UpdateAccessTokensLastUsed.php
index 7e82533..c361746 100644
--- a/src/Jobs/UpdateAccessTokensLastUsed.php
+++ b/src/Jobs/UpdateAccessTokensLastUsed.php
@@ -11,10 +11,10 @@
 use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Queue\SerializesModels;
 
-class UpdateAccessTokensLastUsed implements ShouldQueue, ShouldBeUnique
+class UpdateAccessTokensLastUsed implements ShouldBeUnique, ShouldQueue
 {
-    use InteractsWithQueue;
     use Dispatchable;
+    use InteractsWithQueue;
     use Queueable;
     use SerializesModels;