My dog was given a expired yearly Vaccine will this harm her?

My dog was due for her yearly shot so I bought the Canine Spectra 7 from tractor suppy. (canine distemper- Adenovirus Type 2-Parainfluenza- Parvovirus Vaccine) Gave her the shot lastnight and this morning i found another shot package (SAME EXACT SHOT) which was the shot i bought..but the one I gave my dog lastnight was the shot that my mother must have bought a while back and i never realized there were two shot packages in the fridge..so w/o even thinking twice i gave my dog the shot and it expired Oct 2010!! Im freaking out does anyone know if this is going to harm my dog or what i should do?