Several voting rights groups have dropped a federal lawsuit over the removal of nearly 200,000 people from Georgia’s voter rolls.

The groups filed the lawsuit in December, saying the state removed tens of thousands of voters from the list because it believed they had moved away when, in fact, they had not. It also challenged a provision in state law that allows Georgia to purge voters who do not cast ballots for many years.

The secretary of state’s office has said it follows federal rules for maintaining its voter registration list. In December a federal judge in Atlanta rejected a request by the voting rights groups for a preliminary injunction seeking to restore voters to the list.

The groups — the Black Voters Matter Fund, the Transformative Justice Coalition, the Rainbow Push Coalition and the Southwest Voter Registration Education Project — voluntarily dropped the lawsuit last week.