Listing future internship on resume

Hi,

I just received and accepted an offer for an investment banking internship taking place from March to June 2022. However, I am yet to secure an offer for the summer of 2022. The spring internship should help me out a ton since I will have a few months of investment banking experience by the time summer starts. Meanwhile, it does feel awkward to list a future position on your resume as I do not yet have the experience. What I have done so far is just emailing the banks where I applied for a summer internship, saying that I received some new info that might affect my application, and then telling them about the spring internship. Do you guys think it is acceptable to list it as an expected future experience on my resume when applying for new summer internships?

Thanks in advance!