My contract states that my salary in the following year will be X, which is a ~6% monthly increase from the current one. When the time comes to renew the contract (which is shortly from now), I want to ask for a higher raise than the one stated.
The work environment is relaxed and I have a good relationship with my supervisor. I've done well on the tasks I've had, but it's not like I've made any breakthroughs that will lift the company up. Up until now I haven't had any tasks where I was pressured on the deadline. However, I'm about to take over a project where I was working solo on. The future of this project looks promising for the company.
Are there any drawbacks to asking for a higher salary when the renewal of the contract comes?