diff --git a/src/Bundle/ChillMainBundle/Tests/Security/PasswordRecover/TokenManagerTest.php b/src/Bundle/ChillMainBundle/Tests/Security/PasswordRecover/TokenManagerTest.php
index 7083cfdc4..4bb6c6743 100644
--- a/src/Bundle/ChillMainBundle/Tests/Security/PasswordRecover/TokenManagerTest.php
+++ b/src/Bundle/ChillMainBundle/Tests/Security/PasswordRecover/TokenManagerTest.php
@@ -88,7 +88,7 @@ final class TokenManagerTest extends KernelTestCase
         $this->assertFalse($tokenManager->verify($hash . '5', $token, $user, $timestamp));
         $this->assertFalse($tokenManager->verify($hash, $token . '25', $user, $timestamp));
         $this->assertFalse($tokenManager->verify($hash, $token, $user->setUsernameCanonical('test2'), $timestamp));
-        $this->assertFalse($tokenManager->verify($hash, $token, $user, $timestamp + 1));
+        $this->assertFalse($tokenManager->verify($hash, $token, $user, (string) ($timestamp + 1)));
     }
 
     public function testVerifyExpiredFails()
diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
index 849983187..f232558a2 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
@@ -475,7 +475,7 @@ class AccompanyingPeriod implements
         $participation = $this->getOpenParticipationContainsPerson($person);
 
         if ($participation instanceof AccompanyingPeriodParticipation) {
-            $participation->setEndDate(new DateTimeImmutable('now'));
+            $participation->setEndDate(new DateTime('now'));
         }
 
         return $participation;