Celebrity Parents Ryan Dorsey Celebrates Son Josey's 6th Birthday: 'Sweet, Smart, Spectacular Boy' Ryan Dorsey shared Josey with late ex Naya Rivera, who died in July 2020 By Ally Mauch Published on September 20, 2021 09:31 AM Share Tweet Pin Email Ryan Dorsey is celebrating son Josey on his 6th birthday. Dorsey, who shared Josey with late ex Naya Rivera, marked the special occasion with a sweet Instagram post on Sunday. "The baby boy @joseydorsey is 6!!" he captioned a series of photos, including one of Josey holding up six fingers to mark his age as well as several shots from a Batman-themed birthday party. "Two thousand one hundred ninety+ days old," Dorsey, 38, continued. "My sweet, smart, spectacular boy, every day is a gift, I love you more every day and am so proud to call you my son.❤️💙" The post comes a few weeks after the proud dad celebrated another one of Josey's milestones: starting kindergarten. At the time, Dorsey posted an adorable photo of the boy on what appeared to be his first day of school. Ryan Dorsey 'Couldn't Be Any Prouder' of Son Josey: 'He's Endured More Than Anyone Should at 5' He also posted throwback photos and video from a father-son visit to the Santa Monica Pier, during which the pair rode on the landmark's iconic roller coaster. "#TBT (lol) The 1st Day of Kindergarten was a roller coaster to remember 🎢!!❤️," the actor wrote in the caption. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories. Rivera died in July 2020 at age 33 as a result of a drowning accident after she and Josey rented a boat at Lake Piru in Southern California. When the Glee star didn't return the boat on time, staff found it on the north side of the lake with Josey sleeping in his life jacket on board, but no sign of Rivera. The actress was missing for five days before she was found on July 13, and an autopsy later determined Rivera's cause of death to be an accidental drowning. Authorities later said that Rivera likely saved Josey by putting him back on board the boat before she died. (L-R) Naya Rivera, Ryan Dorsey, son Josey. Ryan Dorsey/Instagram Naya Rivera's Son Josey Starts Kindergarten: 'A Roller Coaster to Remember,' Says Dad Ryan Dorsey This past July, Dorsey marked one year since Rivera's funeral by sharing an emotional tribute that also included an update on their son. "Today … A year ago we laid you to rest. I still can't believe it," he began. "The year has flown by, so fast that it doesn't seem like it's been a year at all. "Our boy has grown so much," Dorsey continued. "He's such an explorer, so inquisitive. He's sweet, so funny, and his laugh always lights up the room. He's an intuitive soul to say the least. To know him is to love him, everyone that meets him is always smiling." Calling Josey a "resilient strong kid," Dorsey added in a note to Rivera that their son "misses you but knows he'll see you again, and the invisible string is something that's helped us out during this ever-evolving transition of your time with us on earth that was unfairly & for reasons we'll never understand cut short … too soon …"