Ariel Winter wears completely sheer dress at 'Modern Family' wrap party

The time has come for Ariel Winter to say goodbye to her beloved character on "Modern Family."

The 22-year-old actress celebrated the ABC show's impressive 11-year run with a huge wrap party at Sunset Room Hollywood in Los Angeles. On Sunday, Sarah Hyland (who plays Haley Dunphy) posted a photo on social media with her on-screen sister, Winter (Alex Dunphy), at the event.

“I love these people with all my heart. 11 years together is proof you and your tv sister will start wearing the same outfit, siblings for life will be made, and you’ll forever fight over the same professor, ” Hyland, 29.

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The star each wrote black dresses and heels. Winter turned heads in a sheer ensemble with a black bra and underwear set.

The "sisters" also posed with "brother" Noah Gould (Luke Dunphy). "We’ll always be Dunphys and we’ll always have each other," Hyland added.

Winter previously told Fox News that living her life in the public eye helped her develop a thick skin toward criticism.

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“Yeah, I mean, I started acting when I was 4 years old. So I've been … [receiving] criticism, judgment, rejection – since [I was] a little kid, so it kind of gives you a thicker skin to begin with,” she told us in January. “I feel like when I got on social media, people … not that people were just starting to bully, but it was like, at a certain time 11 years ago, people were like, 'Oh, we'll just say what we want.'”

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She continued: “So I think going through that over the years and learning how I wanted to respond to it because I've responded to it in so many different ways – I'd respond back and be salty to somebody who is salty to me or I'd respond back and try and be nice about it and hope that maybe their day goes better. But then, as I got older, I developed a thicker skin and I said to myself, ‘You know, it's going to bother me because it never goes away, but you're still human.’ But at the same time, you just gotta remember that these people online – what they're saying – it's not your opinion of yourself.”

The sitcom will air its series finale on April 8, but production on the last episode is just getting underway. The full cast got together to read the script of the final episode before filming and many marked the somber occasion with posts on their Instagram pages.

Sofia Vergara (who plays Gloria Delgado-Pritchett) shared an image of the entire cast sitting around a large table in a packed room filled with others connected to the show.

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“Our last table read😪 sad because its ending but so gratefull and happy to have been able to be part of this family,” she captioned the post. “It has being More than I ever dreamed of or deserved❤️ Gracias my Modern Family.”

Fox News' Tyler McCarthy contributed to this report.