How to change axis values when using spy command?

I have a 1515x1165 matrix of binary data, denoted as A. I also have two vectors, denoted as x and y, that contain the range of x and y values for the matrix of binary data. The vector x is 1x1165 and the vector y is 1515x1. I am trying to plot the matrix using spy(sparse(A)) but the axis labels are the indices for each point. How do I change the axis labels to show my vector of corresponding x and y values? I attached what the plot looks like now. The y and x axis are the index values but I want them to be the range of values in x and y vectors.