Can I take hepatitis B vaccine while I am on roaccutane (izotretinoin)?

I am 23 years old and have been taking roaccutane for my acne problems for the last two months.my doctor said that I need to continue with it for a couple of months more. But I forgot to mention her that I took three doses of hepatitis B vaccine last year and I have another dose due this week. I would be very glad if anyone can please tell me that is this going to be harmful for my health. Or is there is any way out through this ???