diff --git a/app/Classes/Modules/Accounts/Processors/AuthenticationProcessor.php b/app/Classes/Modules/Accounts/Processors/AuthenticationProcessor.php
index 707369e9..a310fdb3 100644
--- a/app/Classes/Modules/Accounts/Processors/AuthenticationProcessor.php
+++ b/app/Classes/Modules/Accounts/Processors/AuthenticationProcessor.php
@@ -82,7 +82,7 @@ class AuthenticationProcessor
         }
 
         //cief todo: case study 1
-        //$this->checkMilestonesForRewardProcessor->execute($user, [Milestones::MILESTONE_1]);
+        $this->checkMilestonesForRewardProcessor->execute($user, [Milestones::MILESTONE_1]);
 
         return ['access_token' => $this->generatesAuthenticationToken->execute($user), 'redirect_url' => $this->authenticationRedirect->url($user)];
     }
diff --git a/app/Classes/Modules/Vouchers/Services/Voucherify/CreatesVoucherifyVoucher.php b/app/Classes/Modules/Vouchers/Services/Voucherify/CreatesVoucherifyVoucher.php
index f3d14bb7..ad95946b 100644
--- a/app/Classes/Modules/Vouchers/Services/Voucherify/CreatesVoucherifyVoucher.php
+++ b/app/Classes/Modules/Vouchers/Services/Voucherify/CreatesVoucherifyVoucher.php
@@ -47,8 +47,8 @@ class CreatesVoucherifyVoucher
                 "metadata" => [
                     "email" => $user->email
                 ],
-                "start_date" => $startDate->format('Y-m-d H:i:s'),
-                "expiration_date" => $expirationDate->format('Y-m-d H:i:s')
+                "start_date" => $startDate->toIso8601String(),
+                "expiration_date" => $expirationDate->toIso8601String()
             ]);
             return $result;
         } catch (\Voucherify\ClientException $e) {