healthcare, the primary website to enroll in health insurance through ObamaCare, will be taken offline again Monday night for improvements, following weekend work designed to fix major technical problems.

The site will be offline beginning at 1 a.m. in order to improve its capacity and make software changes, the Health and Human Services Department said.

HHS said the site had improved as a result of work done over the weekend. The site was taken offline during nonpeak hours to address widespread technical errors that prevented users from creating accounts, a step required before they can compare insurance plans.