Increase maxsize for modules

I’m trying to install the drug inventory management module, and it requires 3 other modules. When trying to upload all 4 of the modules yesterday, I was told that I exceeded the maximum size. How do I increase that size? I’m not very experienced with any of this stuff, just doing some research.

HTTP Status 500 - Request processing failed; nested exception is org.springframework.web.multipart.MaxUploadSizeExceededException: Maximum upload size of 75000000 bytes exceeded; nested exception is org.apache.commons.fileupload.FileUploadBase$SizeLimitExceededException: the request was rejected because its size (89177331) exceeds the configured maximum (75000000)