The 20-year-old supermodel is in the middle of the feud between her brother-in-law and the "Bad Blood" hitmaker over his latest single "Famous", reported Female First.
"At first she was trying to mediate between Taylor and Kanye over text, but things have gone nuclear since then," a source said.
It is in rumours that Jenner is under pressure to end her friendship with Swift, who is currently dating "Night Manager" actor Tom Hiddleston.
"The Kardashians are known for closing ranks, and she's under a lot of pressure to cut ties with Taylor," source reported.