diff --git a/composer.lock b/composer.lock
index 5c69995e..27bedfe9 100644
--- a/composer.lock
+++ b/composer.lock
@@ -2205,16 +2205,16 @@
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.22.0",
+            "version": "v1.20.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "f377a3dd1fde44d37b9831d68dc8dea3ffd28e13"
+                "reference": "39d483bdf39be819deabf04ec872eb0b2410b531"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/f377a3dd1fde44d37b9831d68dc8dea3ffd28e13",
-                "reference": "f377a3dd1fde44d37b9831d68dc8dea3ffd28e13",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/39d483bdf39be819deabf04ec872eb0b2410b531",
+                "reference": "39d483bdf39be819deabf04ec872eb0b2410b531",
                 "shasum": ""
             },
             "require": {
@@ -2226,7 +2226,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "1.22-dev"
+                    "dev-main": "1.20-dev"
                 },
                 "thanks": {
                     "name": "symfony/polyfill",
@@ -2264,20 +2264,20 @@
                 "portable",
                 "shim"
             ],
-            "time": "2021-01-07T16:49:33+00:00"
+            "time": "2020-10-23T14:02:19+00:00"
         },
         {
             "name": "symfony/polyfill-php80",
-            "version": "v1.22.0",
+            "version": "v1.20.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-php80.git",
-                "reference": "dc3063ba22c2a1fd2f45ed856374d79114998f91"
+                "reference": "e70aa8b064c5b72d3df2abd5ab1e90464ad009de"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/dc3063ba22c2a1fd2f45ed856374d79114998f91",
-                "reference": "dc3063ba22c2a1fd2f45ed856374d79114998f91",
+                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/e70aa8b064c5b72d3df2abd5ab1e90464ad009de",
+                "reference": "e70aa8b064c5b72d3df2abd5ab1e90464ad009de",
                 "shasum": ""
             },
             "require": {
@@ -2286,7 +2286,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-main": "1.22-dev"
+                    "dev-main": "1.20-dev"
                 },
                 "thanks": {
                     "name": "symfony/polyfill",
@@ -2330,7 +2330,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2021-01-07T16:49:33+00:00"
+            "time": "2020-10-23T14:02:19+00:00"
         },
         {
             "name": "symfony/translation",
diff --git a/controllers/PrintApiController.php b/controllers/PrintApiController.php
index a2f3da63..7664300e 100644
--- a/controllers/PrintApiController.php
+++ b/controllers/PrintApiController.php
@@ -5,11 +5,13 @@ namespace Grocy\Controllers;
 use Grocy\Controllers\Users\User;
 use Grocy\Services\StockService;
 
-class PrintApiController extends BaseApiController {
+class PrintApiController extends BaseApiController
+{
 
 	public function PrintShoppingListThermal(\Psr\Http\Message\ServerRequestInterface $request, \Psr\Http\Message\ResponseInterface $response, array $args) {
 
-		try {
+		try
+		{
 			User::checkPermission($request, User::PERMISSION_SHOPPINGLIST);
 
 			$params = $request->getQueryParams();
@@ -25,7 +27,9 @@ class PrintApiController extends BaseApiController {
 			}
 			$items = $this->getStockService()->GetShoppinglistInPrintableStrings($listId);
 			return $this->ApiResponse($response, $this->getPrintService()->printShoppingList($printHeader, $items));
-		} catch (\Exception $ex) {
+		}
+		catch (\Exception $ex)
+		{
 			return $this->GenericErrorResponse($response, $ex->getMessage());
 		}
 	}
diff --git a/services/PrintService.php b/services/PrintService.php
index a3d724c9..ae0499c6 100644
--- a/services/PrintService.php
+++ b/services/PrintService.php
@@ -7,7 +7,8 @@ use Mike42\Escpos\PrintConnectors\NetworkPrintConnector;
 use Mike42\Escpos\PrintConnectors\FilePrintConnector;
 use Mike42\Escpos\Printer;
 
-class PrintService extends BaseService {
+class PrintService extends BaseService
+{
 
 
 	/**
@@ -15,7 +16,8 @@ class PrintService extends BaseService {
 	 * @return Printer handle
 	 * @throws Exception if unable to connect to printer
 	 */
-	private static function getPrinterHandle() {
+	private static function getPrinterHandle()
+	{
 		if (GROCY_TPRINTER_IS_NETWORK_PRINTER) {
 			$connector = new NetworkPrintConnector(GROCY_TPRINTER_IP, GROCY_TPRINTER_PORT);
 		} else {
@@ -29,7 +31,8 @@ class PrintService extends BaseService {
 	 * Prints a grocy logo
 	 * @param $printer
 	 */
-	private static function printHeader(Printer $printer) {
+	private static function printHeader(Printer $printer)
+	{
 		$printer->setJustification(Printer::JUSTIFY_CENTER);
 		$printer->selectPrintMode(Printer::MODE_DOUBLE_WIDTH);
 		$printer->setTextSize(4, 4);
@@ -48,16 +51,19 @@ class PrintService extends BaseService {
 	 * @return string[]
 	 * @throws Exception
 	 */
-	public function printShoppingList(bool $printHeader, array $items): array {
+	public function printShoppingList(bool $printHeader, array $items): array
+	{
 		$printer = self::getPrinterHandle();
 		if ($printer === false)
 			throw new Exception("Unable to connect to printer");
 
-		if ($printHeader) {
+		if ($printHeader)
+		{
 			self::printHeader($printer);
 		}
 
-		foreach ($items as $item) {
+		foreach ($items as $item)
+		{
 			$printer->text($item);
 			$printer->feed();
 		}
diff --git a/services/StockService.php b/services/StockService.php
index 828d5c8d..ce5b2fa0 100644
--- a/services/StockService.php
+++ b/services/StockService.php
@@ -941,14 +941,17 @@ class StockService extends BaseService
 	 * @return string[] Returns an array in the format "[amount] [name of product]"
 	 * @throws \Exception
 	 */
-	public function GetShoppinglistInPrintableStrings($listId = 1): array {
-		if (!$this->ShoppingListExists($listId)) {
+	public function GetShoppinglistInPrintableStrings($listId = 1): array
+	{
+		if (!$this->ShoppingListExists($listId))
+		{
 			throw new \Exception('Shopping list does not exist');
 		}
 
 		$result                   = array();
 		$rowsShoppingListProducts = $this->getDatabase()->shopping_list()->where('shopping_list_id = :1', $listId)->fetchAll();
-		foreach ($rowsShoppingListProducts as $row) {
+		foreach ($rowsShoppingListProducts as $row)
+		{
 			$product = $this->getDatabase()->products()->where('id = :1', $row['product_id'])->fetch();
 			array_push($result, $row["amount"] . " " . $product["name"]);
 		}