Many ports along the East and Gulf coasts were shut down, threatening the country’s supply chains, after unionized port workers went on strike on Tuesday. But those workers will return to work after reaching a tentative agreement on wages with the group representing port employers.

US dock workers and port operators have reached a tentative deal that will immediately end a three-day strike.

The International Longshoremen’s Association (ILA) union and the U.S. Maritime Alliance (USMX), an association of companies that operate East and Gulf Coast ports, reached a tentative agreement Thursday to end a two-day strike.