My question involves a security deposit in the State of: Texas

I rented a house in League City, Galveston, Texas. My landlord wrongfully withheld a portion of my security deposit. I wish to sue him in small claims court in the county (Galveston). He just relocated from Louisiana to Austin, Texas. Does he have the right to move the small claims venue to Austin? This would destroy my chance of winning as my witness would not be able to make the 3 hour drive. Thanks for your help!!