Help my property taxes went up 52%

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I bought a single family home last year in San Antonio Texas for approximately 105k the only thing I did to it was paint it inside and out plus clean the carpets. The tax appraisal for 2015 was $142,430. Now I get a letter in the mail that the tax appraisal  for 2016 is $192,430.00 . I have the property leased and the higher tax value would eat up the cash flow. To raise the tax rate  to above full retail seems like legalized thievery.  I need help knowing how to handle this.