Warning: There are mild spoilers ahead for season four of "Riverdale."

Camila Mendes, who stars as Veronica Luna (née Lodge), on The CW show, told Insider that she and her costars didn't know the show got renewed for a fifth season until they saw the news on social media.

"It was very odd," Mendes, who's promoting her partnership with Secret Deodorant as part of their "All Strength, No Sweat" campaign, told us. I feel like we would get emails about it in seasons one and two, but now we just find out online."

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"Riverdale" star Camila Mendes, who portrays Veronica Luna (née Lodge), says that the cast wasn't aware that the show got renewed for a fifth season until she saw the news online.

"It was funny. None of us were told that we were getting renewed," Mendes, who's promoting her partnership with deodorant brand Secret as part of its "All Strength, No Sweat" campaign, told Insider.

She continued: "We just found out through social media. It was very odd. I feel like we would get emails about it in seasons one and two, but now we just find out online."

Mendes has portrayed Veronica since the show premiered on The CW in January 2017. The season four mid-season finale aired in December 2019 and "Riverdale's" renewal was revealed in early January 2020.

The 25-year-old actress went on to say that the day she learned about season five, she and costar KJ Apa (Archie Andrews) were on set, coincidentally discussing how much longer they think the show could go on for.

"He was like, 'Do you think we'll get renewed for a season five? And I was like, 'Yeah. Right?' And we just had this whole conversation about it," Mendes told us. "We were like, 'Are we? I don't know.' And then literally hours later, we found out online that we were and it was so, so bizarre and funny that we were just having that conversation the morning of."

She added: "It was amazing news."

KJ Apa and Camila Mendes on season four of "Riverdale." The CW

The current season of "Riverdale" has seen Mendes' character go through some significant changes and learn surprising things about her family.

Veronica's rivalry with her father, Hiram Lodge (Mark Consuelos), continued to intensify, she legally changed her last name to Hiram's former surname, and she came face-to-face with a half-sister (Hermosa, from another relationship that Hiram had) that she didn't even know existed.

Mishel Prada and Camila Mendes on season four of "Riverdale." The CW

"I really loved the introduction of Hermosa," Mendes told us. "I think that really threw off Veronica and I like this whole competitive story of who's the more loyal daughter and who does Hiram love most? I think it adds a lot of juicy content to the Veronica storyline and I love working with Mishel [Prada]."

Mendes was "tight-lipped" about what will happen as season four progresses, especially given the possibility that Jughead Jones (Cole Sprouse) might not survive spring break, but fans can expect to see "a big dance number" soon.

"There will always be musical moments on 'Riverdale' and we can definitely expect another musical episode coming," she said.

Season four of "Riverdale" resumes on The CW on Wednesday, January 22. Watch a teaser for the next episode in the video below.