diff --git a/database/migrations/2019_12_14_000001_create_personal_access_tokens_table.php b/database/migrations/2019_12_14_000001_create_personal_access_tokens_table.php
index ad6cb7c..40ff706 100644
--- a/database/migrations/2019_12_14_000001_create_personal_access_tokens_table.php
+++ b/database/migrations/2019_12_14_000001_create_personal_access_tokens_table.php
@@ -18,7 +18,7 @@ public function up(): void
             $table->string('token', 64)->unique();
             $table->text('abilities')->nullable();
             $table->timestamp('last_used_at')->nullable();
-            $table->timestamp('expires_at')->nullable();
+            $table->timestamp('expires_at')->nullable()->index();
             $table->timestamps();
         });
     }