updated 07/13/2014 AT 3:00 PM ET
•originally published 07/13/2014 AT 4:30 PM ET
One year after Cory Monteith’s tragic death, his Glee costars are sharing memories of their friend over social media.
Monteith was found dead July 13, 2013, after overdosing on heroin and alcohol in his Vancouver hotel room. He was 31.
On Sunday, on- and off-screen girlfriend Lea Michele posted photos in the late actor s honor.
“We hold you in our hearts today, and every day we remember your smile. We will love you and miss you always,” she wrote on Twitter in a message retweeted by Chris Colfer.
See their tributes below: