Longmire, A&E Network’s most-watched original drama series of all time, will be ending its run on the cable network after three seasons. In a surprising move, the network has opted not to renew the series for a fourth season. I hear Warner Horizon, the studio behind Longmire, will be shopping it immediately. “We would like to thank the phenomenal cast, crew and producers of Longmire, along with our partners at Warner Horizon, for their tireless work on three seasons of quality dramatic storytelling,” A&E said in a statement. “We are incredibly proud of what we have achieved together.”

In its second season, Longmire averaged nearly 6 million viewers, up 9% from Season 1. Longmire‘s viewership has dipped so far in Season 3 to 4.6 million viewers, but its lead-in, Criminal Minds repeats, is a lot weaker (-72%) than the series’ lead-in last year, original drama The Glades.