NPR was reporting that Wagner was demanding defense minister to step down or else they’d do it themselves
https://www.npr.org/2023/06/23/1184090744/russia-wagner-group-yevgeny-prigozhin-criminal-case
The owner of a private military contractor, Yevgeny Prigozhin, has made a direct challenge to the Kremlin by calling for an armed rebellion to oust Russia's defense minister, which has prompted Russian security services to call for his arrest and open a criminal investigation. The Kremlin is taking the threat seriously, with heightened security in Moscow and Rostov-on-Don, where the Russian military oversees the fighting in Ukraine. The outcome of the confrontation remains unclear, but it could potentially hinder Moscow's war efforts as Ukrainian forces probe Russian defenses in a counteroffensive.