I need help unlocking the next lesson. July 28, 2023 14:02 Updated In case you've finished a lesson but the next one doesn't unlock, please try to log out and log in again. If this doesn't help, please submit a request. We'll get back to you as soon as possible. Related articles How can I report a bug? How can I report a mistake in an exercise? Can I get a certificate for free? Which coding languages can I learn with Mimo? How can I contact you?