How do I install UE4 version 4.23 instead of 4.23.1?

My team and I were all using 4.23 and one of my team members do not have 4.23 installed. Now only 4.23.1 is available. Is there a way for her to install the same version of UE4?

I guess not. You could only build it yourself via sources and 4.23 branch/tag.