diff --git a/lib/Controller/AttachmentApiController.php b/lib/Controller/AttachmentApiController.php
index d290b1906..8e82739a0 100644
--- a/lib/Controller/AttachmentApiController.php
+++ b/lib/Controller/AttachmentApiController.php
@@ -26,7 +26,6 @@ use OCP\AppFramework\ApiController;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
 use OCP\IRequest;
-
 use OCA\Deck\Service\AttachmentService;
 
 class AttachmentApiController extends ApiController {
diff --git a/lib/Controller/BoardApiController.php b/lib/Controller/BoardApiController.php
index 0d4770d7a..d45644eef 100644
--- a/lib/Controller/BoardApiController.php
+++ b/lib/Controller/BoardApiController.php
@@ -28,8 +28,6 @@ use OCP\AppFramework\ApiController;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
 use OCP\IRequest;
-use OCP\IUserManager;
-use OCP\IGroupManager;
 
 use OCA\Deck\Service\BoardService;
 
diff --git a/lib/Controller/CardApiController.php b/lib/Controller/CardApiController.php
index 6d40d3d91..a26817c9a 100644
--- a/lib/Controller/CardApiController.php
+++ b/lib/Controller/CardApiController.php
@@ -27,9 +27,6 @@
  use OCP\AppFramework\Http;
  use OCP\AppFramework\Http\DataResponse;
  use OCP\IRequest;
- 
- use OCA\Deck\Service\BoardService;
- use OCA\Deck\Service\StackService;
  use OCA\Deck\Service\CardService;
 
  /**
diff --git a/lib/Controller/LabelApiController.php b/lib/Controller/LabelApiController.php
index 72643c963..87f729d8b 100644
--- a/lib/Controller/LabelApiController.php
+++ b/lib/Controller/LabelApiController.php
@@ -28,7 +28,6 @@ use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
 use OCP\IRequest;
 use OCA\Deck\Service\LabelService;
-use OCA\Deck\Service\BoardService;
 use OCA\Deck\Controller\Helper\ApiHelper;
 
  /**
diff --git a/lib/Controller/StackApiController.php b/lib/Controller/StackApiController.php
index 025843f18..936311bac 100644
--- a/lib/Controller/StackApiController.php
+++ b/lib/Controller/StackApiController.php
@@ -28,8 +28,6 @@ use OCP\AppFramework\ApiController;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
 use OCP\IRequest;
-
-use OCA\Deck\StatusException;
 use OCA\Deck\Service\StackService;
 use OCA\Deck\Service\BoardService;
 
diff --git a/lib/Service/StackService.php b/lib/Service/StackService.php
index b30c94296..f2bdbaff8 100644
--- a/lib/Service/StackService.php
+++ b/lib/Service/StackService.php
@@ -32,8 +32,6 @@ use OCA\Deck\Db\Stack;
 use OCA\Deck\Db\StackMapper;
 use OCA\Deck\StatusException;
 use OCA\Deck\BadRequestException;
-use OCP\ICache;
-use OCP\ICacheFactory;
 
 
 class StackService {