PhD vacancy advertisement reposted with slightly different requirement.

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I applied for a PhD position last month and I received an e-mail few days later that I have been shortlisted. while I was waiting for further information ,Today, I found that they advertised the same position with the different requirements. I guess they were looking for computer science graduate. In the initial ad the qualification is masters in engineering . in the new one, they changed it to masters in computer science. PhD focus is on energy sector and AI. I have the experience in AI but I am not computer science graduate . Should I contact them? how can I prove them I am eligible for consideration for this position.
Thanks in advance for your inputs

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