Upgrade to OS Ventura

The Age of this computer will Govern what newer version of macOS it will Qualify to install. Use About this Mac from the Apple Icon on Desktop - the required Information will be there.

With the above information in-hand - follow this How to get old versions of macOS and verify what version this computer Qualifies to install.  For Best results use Safari to commence the download as Others may not work.

Safari will open a redirect and open the Apple Store where the download can commence.

I would suggest upGrading in Steps as there are a great deal of changes that have taken side Mojave to present.

Computer Qualifying for macOS 13 Ventura 

Computer Qualify for the Monterey upgrade

macOS Big Sur 11 hardware requirements

macOS Catalina 10.15 hardware requirements

Make Time Machine Backup  is very useful 

Further, a Rescue Plan consisting of the 3 - 2 - 1 Method.

3 Backups using 2 different methods and 1 Off Site incase of Natural or Un-Natural Disaster

Notation - Mojave is the Last version to support 32 bit applications / extensions and Drivers. Catalina, Big Sur, Monterey, Ventura supports only 64 bit and there is no workaround.

Suggest using Go64 to find 32 bit application before attempting the upGrade. Some or many of the Application already installed may require an update or upGrades to 64 Bit Version

Mojave macOS 10.14 - release 2018

Catalina macOS 10.15 released 2019

Big Sur macOS 11 released 2020

Monterey macOS 12 released 2021

Ventura macOS 13 Current latest macOS released 2022

You are Welcome and Thank you too.

Should you have additional questions during this " Brave Pill " 😀 process, we are here to answer additional questions.

Suggest asking Before this rather than Afterward