diff --git a/packages/framework/src/Migrations/Version20180724060204.php b/packages/framework/src/Migrations/Version20180724060204.php
index 4eb73d281ff..def7efdba7a 100644
--- a/packages/framework/src/Migrations/Version20180724060204.php
+++ b/packages/framework/src/Migrations/Version20180724060204.php
@@ -10,7 +10,7 @@ class Version20180724060204 extends AbstractMigration
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function up(Schema $schema) : void
+    public function up(Schema $schema): void
     {
         $this->sql('
             CREATE OR REPLACE FUNCTION set_product_catnum_tsvector() RETURNS trigger AS $$
@@ -156,7 +156,7 @@ public function up(Schema $schema) : void
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function down(Schema $schema) : void
+    public function down(Schema $schema): void
     {
     }
 }
diff --git a/packages/framework/src/Migrations/Version20181114102106.php b/packages/framework/src/Migrations/Version20181114102106.php
index e10ee5825ae..d7a5e0b5ba1 100644
--- a/packages/framework/src/Migrations/Version20181114102106.php
+++ b/packages/framework/src/Migrations/Version20181114102106.php
@@ -12,7 +12,7 @@ final class Version20181114102106 extends AbstractMigration
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function up(Schema $schema) : void
+    public function up(Schema $schema): void
     {
         $this->sql('ALTER TABLE pricing_groups ALTER COLUMN coefficient DROP NOT NULL');
     }
@@ -20,7 +20,7 @@ public function up(Schema $schema) : void
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function down(Schema $schema) : void
+    public function down(Schema $schema): void
     {
     }
 }
diff --git a/packages/framework/src/Migrations/Version20181114120915.php b/packages/framework/src/Migrations/Version20181114120915.php
index 7aa85879afc..8ad177c01c1 100644
--- a/packages/framework/src/Migrations/Version20181114120915.php
+++ b/packages/framework/src/Migrations/Version20181114120915.php
@@ -12,7 +12,7 @@ final class Version20181114120915 extends AbstractMigration
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function up(Schema $schema) : void
+    public function up(Schema $schema): void
     {
         $this->sql('ALTER TABLE products ALTER COLUMN price_calculation_type DROP NOT NULL');
     }
@@ -20,7 +20,7 @@ public function up(Schema $schema) : void
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function down(Schema $schema) : void
+    public function down(Schema $schema): void
     {
     }
 }
diff --git a/packages/framework/src/Migrations/Version20181114134959.php b/packages/framework/src/Migrations/Version20181114134959.php
index f963df4f3d9..293e4e5d101 100644
--- a/packages/framework/src/Migrations/Version20181114134959.php
+++ b/packages/framework/src/Migrations/Version20181114134959.php
@@ -12,7 +12,7 @@ final class Version20181114134959 extends AbstractMigration
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function up(Schema $schema) : void
+    public function up(Schema $schema): void
     {
         /**
          * for each price group find matching currency on price group domain
@@ -41,7 +41,7 @@ public function up(Schema $schema) : void
     /**
      * @param \Doctrine\DBAL\Schema\Schema $schema
      */
-    public function down(Schema $schema) : void
+    public function down(Schema $schema): void
     {
     }
 }
diff --git a/packages/framework/src/Twig/FormThemeExtension.php b/packages/framework/src/Twig/FormThemeExtension.php
index 2344d3ac2b8..23870870c69 100644
--- a/packages/framework/src/Twig/FormThemeExtension.php
+++ b/packages/framework/src/Twig/FormThemeExtension.php
@@ -52,7 +52,7 @@ public function getDefaultFormTheme()
      * @param string $controller
      * @return bool
      */
-    protected function isAdmin(string $controller) : bool
+    protected function isAdmin(string $controller): bool
     {
         return strpos($controller, 'Shopsys\FrameworkBundle\Controller\Admin') === 0 ||
             strpos($controller, 'Shopsys\ShopBundle\Controller\Admin') === 0;
diff --git a/project-base/tests/ShopBundle/Functional/Model/Order/OrderFacadeEditTest.php b/project-base/tests/ShopBundle/Functional/Model/Order/OrderFacadeEditTest.php
index 1b4621678e5..47928adb411 100644
--- a/project-base/tests/ShopBundle/Functional/Model/Order/OrderFacadeEditTest.php
+++ b/project-base/tests/ShopBundle/Functional/Model/Order/OrderFacadeEditTest.php
@@ -42,7 +42,7 @@ final class OrderFacadeEditTest extends TransactionFunctionalTestCase
      */
     private $orderItemDataFactory;
 
-    protected function setUp():void
+    protected function setUp(): void
     {
         parent::setUp();