Why is omit not available for this query?

I am using prisma 5.21.1. If I try this call omit is not available why?

client.profile.findFirst({
      omit: {
        password: true,
      },
      where: {
        id: profileId,
      },
    });

client.profile.findFirst({
      omit: {
        password: true,
      },
      where: {
        id: profileId,
      },
    });

client.profile.findFirst({
      omit: {
        password: true,
      },
      where: {
        id: profileId,
      },
    });

client.profile.findFirst({
      omit: {
        password: true,
      },
      where: {
        id: profileId,
      },
    });