Wilson shared his own sweet gesture, writing, "6 years ago today we met & fell in love."
The celebrity couple married in 2016 during an intimate ceremony held at a castle in England. They share two kids together, son Win Harrison, 8 months, and daughter Sienna Princess, 3. Ciara also shares her 6-year-old son, Future Zahir, with ex-fiance Future.
Ciara and Wilson also gave fans a behind-the-scenes look at their celebratory evening out with numerous photos and video clips of their delicious looking meal and romantic setting.
"Yummy," Ciara captioned a snapshot of a sausage and pepperoni pizza. A small colorful sign reading "Congratulations" is also seen on the table.
"6 years of love!!!" Wilson wrote on a similar video, which was followed by more footage of the couple taking stroll through an outdoor area filled with lights.
Earlier this year, Ciara achieved her first top 10 hit on Billboard's Hot Gospel Songs chart with Tasha Cobbs Leonard's "In Spite of Me." It marked Ciara's first Hot Gospel Songs entry, following her run of secular hits in the 2000s and '10s.