You wan to refinance. Make sure you can refinance at this short time. Read both mortgages, they can impose some penalties if the morgaged property is refinaced in so short time. Make sure you have some equity (market value of the property less the balance of the two morgages). Financial institutions do not typically give 100% loan to value when refinancing. How your property have increased in value in one year? Is this increase in value sufficient to refinance the current debt on the property at a lower rate? Make sure that, if you can refinance and have equity, the interest is lower than the one you have right now. Remember, that refinancing is cancelling one loan and making another loan and there are some closing costs that you have to pay. Make sure you have money for these cost unless you want to mortgage the closing costs.
Refinancing takes many aspects to evaluate: interest rates, loan to value, closing costs, market value of the property, amount of existing morgages, credit score, credit history, your current income and expenses, additional debts after you bought the property, etc.
I suggest you to call the financial institution that you trust an explain to them your goals and your current situation. They are better qualified to inform you and help you determine a course of action to refinance your property.