The EF-S 18-55mm is a very inexpensive lens, but it doesn't have a high build-quality. It's designed with "affordability" in mind so that you can get a camera body + lens combination at a rate mere mortals can afford.... and then let you upgrade your system over time.
The replacement for it is the new EF-S 18-55mm f/3.5-5.6 STM (it's the "STM" tag that is important ... that indicates the lens has Canon's new "stepper motor" technology). The stepper motor will seem quite a bit different because it's a "focus by wire" lens (when you rotate the focus ring, it's just an electronic input ... there is no mechanical linkage from the focus ring to the focusing elements within the lens). But this also means that the focus motor will only move the lens when the focus system is active (if you rotate the manual focus ring when the camera's focus system isn't active then nothing will happen.) But this new STM lens is better than the previous 18-55 in many ways... optically, build-quality, responsiveness, etc. etc. many things have been improved.
The price of the STM is only $50 more than the non-STM version and, in my opinion, it's worth every penny of those $50 for all the improvements.
If you've got some extra funds... the EF-S 17-55mm f/2.8 IS USM would be the lens to get. That lens is a lower focal ratio lens (it collects more light ... because it is physically larger) and it can provide an f/2.8 focal ratio at any focal length (unlike your currently lens which has a max aperture of f/3.5 but only at the 18mm end and it quickly drops to f/5.6. An f/2.8 lens collects 4x more light than an f/5.6 lens. That means you can shoot in darker situations without having to boost the ISO as much... or instead you could use shutter speeds up to 4x faster.)