  In this paper, we test one of the predictions of the Scale Invariant Vacuum
(SIV) theory on MOND. According to that theory, MOND's acceleration $a_0$ is
not a universal quantity but depends on several parameters, including time. To
check this prediction, we compare the dependency of $a_0$ from redshift, using
the values of $a_0$ obtained in Marra et al. (2020) by carrying a Bayesian
inference for 153 galaxies of the SPARC sample. Since this sample does not
contain galaxies at large redshift, we have estimated $a_0$ from the data in
Nestor Shachar et al. (2023). The SPARC sample, for small values of the
redshift, in the redshift range $0.00032-0.032$ gives a correlation with $z$,
while the Nestor Shachar et al. (2023) data, in the higher redshift range
$0.5-2.5$ gives an anti-correlation with the redshift $z$. Both samples show a
dependency of $a_0$ from $z$, although the uncertainties involved are large,
especially for the high-redshift galaxies. The combined sample gives an overall
correlation of $a_0$ with $z$. The different behavior at low and high redshift
can be related to a change of the $a_0(z)$ with redshift, or to the lower
precision with which the high-redshift value of $a_0$ are known.
