The Texans were awarded linebacker Ben Heeney off waivers from the New Orleans Saints.
They cut safety Kurtis Drummond.
Heeney is a former Oakland Raiders fifth-round draft pick from Kansas.
Heeney had 127 tackles and one interception as a senior.
Heeney spent his rookie season with the Raiders on injured reserve.
He was briefly on the Saints' practice squad and active roster this season.
Drummond played in all four games this season, recording no tackles. He spent last season on injured reserve.