Library not compiled for iOS version below 9.1

I get this error when i set my minimum deployment target to iOS 7.1

(null): Object file (/Users/jatin/Library/Developer/Xcode/DerivedData/MyProject/Build/Products/Debug-iphonesimulator/libNYSegmentedControl.a(NYSegmentIndicator.o)) was built for newer iOS version (9.1) than being linked (7.1)

Can you recompile it with minimum target as iOS 7.1? Warnings are not very delightful to see. :(
