Dell Optiplex 3020 SFF CPU Upgrade!

Hello, I'm considering on upgrading my CPU at some point as I currently have an Intel Core i3 4160 processor clocked at 3.6GHz with turbo boosting and for my specific model I can get a Intel Core i3 or an Intel Core i5 and I found that the chipset in my PC (Intel H81) says I can upgrade to an Intel Core i5-4690 CPU and I'm not sure if my PC supports it, I got that information of cpu-upgrade.com. Here's my PC's manual link;

Dell OptiPlex 3020–Small Form Factor Owner's Manual | Dell UK

Thank you.