Yes, there is a way to change your password on Kukai. To do so, you will need to reimport your seed phrase, which is a series of words that you used to create your account. This will give you the opportunity to set a new password. It's important to make sure that your new password is secure and that you don't forget it. To ensure that your account remains secure, it's also a good idea to use two-factor authentication when logging in. This will help to protect your account from unauthorized access.