The snap showed the couple sharing wedding kiss in front of guests and priest, reported Ace Showbiz.
"Happy Valentine's Day to the best husband in the world," the actress captioned the shot. "I love you!"
Rivera wed actor Dorsey in a ceremony held in Cabo San Lucas, Mexico on July 19, 2014, less than a year after her broken engagement from Big Sean.
The two first met in 2010 and became friends first before they then started dating.
The couple exchanged vows in front of only 12 people consisting of the bride's and the groom's families.