Can you create a Python program to sort the values in a dictionary by their keys?
{'Shiva': 23, 'Rohan': 12, 'Amit': 79}
d = {'Shiva': 23, 'Rohan': 12, 'Amit': 79} 

sorted_dict = dict(sorted(d.items(), key = lambda x : x[0])) 

print("Sorted Dictionary :", sorted_dict)