Passwordt strenght too strong

Hi there! On my Woocommerce website I have a login area for costumers, where they can login and check out their orders. But the password security is so strong, that passwords like ‘Picknick123!’ are too weak. And the strength is even stricter when they forget their passwords, so they need to come up with complete codes. This is not very costumer friendly, and I would like to do something about it. One capital and number should be enough, right? Is there a plugin that could help me do this? All thoughts are welcome! Thanks!