Yes! You can lower the reserve price. But you can’t increase it.

If you lower the reserve price of an object in auction, the new reserve price must be at least €1 higher than the current highest bid. 

Keep in mind, you can’t add a reserve price to an object in auction that doesn’t already have one.

To lower the reserve price, make sure you’re logged into your account and follow these steps:

1. Select your name at the top right corner of the homepage 
2. Select 'My lots in auction'
3. Select 'Edit' on the particular object you’d like to lower the reserve price for and enter the new reserve price

Please note: changes you make are final. It’s not possible to increase the reserve price once you confirm the changes.