diff --git a/.travis.yml b/.travis.yml
index e943a7d7a..c6e115821 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: php
 
-php: 5.6
+php: 7.1
 
 before_install:
   - composer self-update
diff --git a/app/model/User/User.php b/app/model/User/User.php
index c46dd7918..8c3d270c5 100644
--- a/app/model/User/User.php
+++ b/app/model/User/User.php
@@ -390,8 +390,8 @@ public function removeRole(Role $role)
     public function isInRole(Role $role)
     {
         return $this->roles->filter(function ($item) use ($role) {
-                return $item == $role;
-            })->count() != 0;
+            return $item == $role;
+        })->count() != 0;
     }
 
     /**
diff --git a/app/model/User/VariableSymbol.php b/app/model/User/VariableSymbol.php
index a816f1753..06f3dd3bc 100644
--- a/app/model/User/VariableSymbol.php
+++ b/app/model/User/VariableSymbol.php
@@ -48,4 +48,4 @@ public function setVariableSymbol(string $variableSymbol)
     {
         $this->variableSymbol = $variableSymbol;
     }
-}
\ No newline at end of file
+}
diff --git a/app/services/ApplicationService.php b/app/services/ApplicationService.php
index af9cb060e..c83cbe623 100644
--- a/app/services/ApplicationService.php
+++ b/app/services/ApplicationService.php
@@ -9,7 +9,6 @@
 use App\Model\Mailing\Template;
 use App\Model\Mailing\TemplateVariable;
 use App\Model\Settings\Settings;
-use App\Model\Settings\SettingsException;
 use App\Model\Settings\SettingsRepository;
 use App\Model\Structure\DiscountRepository;
 use App\Model\Structure\Subevent;
@@ -26,8 +25,6 @@
 use Doctrine\Common\Collections\Collection;
 use Kdyby\Translation\Translator;
 use Nette;
-use Ublaboo\Mailing\Exception\MailingException;
-use Ublaboo\Mailing\Exception\MailingMailCreationException;
 
 
 /**
@@ -170,8 +167,12 @@ public function updateRoles(User $user, Collection $roles, ?User $createdBy, boo
 
         //pokud se role nezmenily, nic se neprovede
         if ($roles->count() == $oldRoles->count()) {
-            $rolesArray = $roles->map(function (Role $role) {return $role->getId();})->toArray();
-            $oldRolesArray = $oldRoles->map(function (Role $role) {return $role->getId();})->toArray();
+            $rolesArray = $roles->map(function (Role $role) {
+                return $role->getId();
+            })->toArray();
+            $oldRolesArray = $oldRoles->map(function (Role $role) {
+                return $role->getId();
+            })->toArray();
 
             if (array_diff($rolesArray, $oldRolesArray) === array_diff($oldRolesArray, $rolesArray))
                 return;
@@ -190,8 +191,8 @@ public function updateRoles(User $user, Collection $roles, ?User $createdBy, boo
                 })) {
                     $user->setApproved(TRUE);
                 } elseif (!$approve && $roles->exists(function (int $key, Role $role) use ($oldRoles) {
-                        return !$role->isApprovedAfterRegistration() && !$oldRoles->contains($role);
-                    })) {
+                    return !$role->isApprovedAfterRegistration() && !$oldRoles->contains($role);
+                })) {
                     $user->setApproved(FALSE);
                 }
 
@@ -236,7 +237,9 @@ public function updateRoles(User $user, Collection $roles, ?User $createdBy, boo
 
         $this->mailService->sendMailFromTemplate($user, '', Template::ROLES_CHANGED, [
             TemplateVariable::SEMINAR_NAME => $this->settingsRepository->getValue(Settings::SEMINAR_NAME),
-            TemplateVariable::USERS_ROLES => implode(', ', $roles->map(function (Role $role) {return $role->getName();})->toArray())
+            TemplateVariable::USERS_ROLES => implode(', ', $roles->map(function (Role $role) {
+                return $role->getName();
+            })->toArray())
         ]);
     }
 
@@ -306,8 +309,12 @@ public function updateSubeventsApplication(SubeventsApplication $application, Co
 
         //pokud se podakce nezmenily, nic se neprovede
         if ($subevents->count() == $oldSubevents->count()) {
-            $subeventsArray = $subevents->map(function (Subevent $subevent) {return $subevent->getId();})->toArray();
-            $oldSubeventsArray = $oldSubevents->map(function (Subevent $subevent) {return $subevent->getId();})->toArray();
+            $subeventsArray = $subevents->map(function (Subevent $subevent) {
+                return $subevent->getId();
+            })->toArray();
+            $oldSubeventsArray = $oldSubevents->map(function (Subevent $subevent) {
+                return $subevent->getId();
+            })->toArray();
 
             if (array_diff($subeventsArray, $oldSubeventsArray) === array_diff($oldSubeventsArray, $subeventsArray))
                 return;
@@ -396,8 +403,10 @@ public function updatePayment(Application $application, string $variableSymbol,
             && $maturityDate == $oldMaturityDate)
             return;
 
-        $this->applicationRepository->getEntityManager()->transactional(function ($em) use ($application,
-            $variableSymbol, $paymentMethod, $paymentDate, $incomeProofPrintedDate, $maturityDate, $createdBy) {
+        $this->applicationRepository->getEntityManager()->transactional(function ($em) use (
+            $application,
+            $variableSymbol, $paymentMethod, $paymentDate, $incomeProofPrintedDate, $maturityDate, $createdBy
+        ) {
             $user = $application->getUser();
 
             $newApplication = clone $application;
@@ -449,8 +458,8 @@ private function createRolesApplication(User $user, Collection $roles, User $cre
     {
         $user->setApproved(TRUE);
         if (!$approve && $roles->exists(function (int $key, Role $role) {
-                return !$role->isApprovedAfterRegistration();
-            }))
+            return !$role->isApprovedAfterRegistration();
+        }))
             $user->setApproved(FALSE);
 
         $user->setRoles($roles);
diff --git a/app/utils/Validators.php b/app/utils/Validators.php
index 467ae0cb0..cf4703b4a 100644
--- a/app/utils/Validators.php
+++ b/app/utils/Validators.php
@@ -199,4 +199,4 @@ public function validateSubeventsRegistered(Collection $selectedSubevents, User
         }
         return TRUE;
     }
-}
\ No newline at end of file
+}