diff --git a/tests/php/Http/Controllers/Api/ProjectInvitationControllerTest.php b/tests/php/Http/Controllers/Api/ProjectInvitationControllerTest.php
index 26cb79838..4b347ee59 100644
--- a/tests/php/Http/Controllers/Api/ProjectInvitationControllerTest.php
+++ b/tests/php/Http/Controllers/Api/ProjectInvitationControllerTest.php
@@ -41,7 +41,7 @@ public function testStore()
     
         $invitation = $this->project()->invitations()->first();
         $this->assertNotNull($invitation);
-        $this->assertSame($timestamp->toDateTimeString(), $invitation->expires_at->tz($timestamp->timezone)->toDateTimeString());
+        $this->assertEquals($timestamp, $invitation->expires_at);
         $this->assertSame(0, $invitation->current_uses);
         $this->assertNotNull($invitation->uuid);
         $this->assertNull($invitation->max_uses);
diff --git a/tests/php/Services/Auth/ApiGuardTest.php b/tests/php/Services/Auth/ApiGuardTest.php
index 65465b284..17e2b316b 100644
--- a/tests/php/Services/Auth/ApiGuardTest.php
+++ b/tests/php/Services/Auth/ApiGuardTest.php
@@ -120,7 +120,7 @@ public function testTouchToken()
         $token->updated_at = Carbon::now(-5);
         $token->save();
 
-        $this->assertSame($token->updated_at->toDateTimeString(), $token->fresh()->updated_at->toDateTimeString());
+        $this->assertEquals($token->updated_at, $token->fresh()->updated_at);
 
         $response = $this->call('GET', '/api/v1/users', [], [], [], [
             'PHP_AUTH_USER' => $token->owner->email,