  We present interpretation of the oscillation spectrum of the early B-type
star $\gamma$ Pegasi, in which both low order p/g and high-order g-modes are
observed. Using amplitudes and phases of the photometric and radial velocity
variations, we identify/constrain the mode degree, $\ell$, for all 14 detected
frequencies. Seismic models fitting two pulsational frequencies corresponding
to the modes $\ell=0$, p$_1$ and $\ell=1$, g$_1$ were constructed. This set of
models contains those which reproduce also the empirical values of the complex
nonadiabatic parameter $f$ associated to these two mode frequencies.
Unfortunately, there are no models reproducing the values of $f$ for both
frequencies simultaneously, regardless of model atmospheres, opacity data,
chemical mixture as well as opacity enhancement in the $Z-$ and Deep Opacity
Bumps. Most probably, some modifications of the opacities in stellar interiors
are still required.
