  We show that in nonlocal generalization of standard nonsupersymmetric SU(5)
GUT it is possible to solve the problems with the proton lifetime and the
Weinberg angle without introduction of additional particles in the spectrum of
the theory. Non-local scale responsible for ultraviolet cutoff coincides (up to
some factor) with GUT scale. We find that in the simplest nonlocal modification
of the SU(5) model $M_{\rm GUT} = 3 * 10^{16}$ GeV . In general case the value
of M_GUT is an arbitrary and the most interesting option $M_{\rm GUT} =
O(M_{\rm PL})$ could be realized.
