The Chicago Blackhawks on Friday agreed to extensions with forward Philipp Kurashev and defenseman Caleb Jones.

The Hawks have engaged in a roster reconstruction this summer, and many of last season’s holdovers — in Chicago and Rockford — won’t return this season.

But the team was impressed enough by Kurashev’s and Jones’ development to keep the restricted free agents (Jones had arbitration rights) around for at least one more season.

Jones, the 25-year-old brother of fellow Hawks defenseman Seth Jones, agreed to a one-year extension with a cap hit of $1.35 million.

Jones enters his fifth season after posting career highs in goals (five) and assists (10) last season. Jones’ five goals tied his brother for the most among Hawks defensemen.