    function modifyCollateralAndDebt(){
        ..snip
        if (
            (deltaDebt > 0 || deltaCollateral < 0) &&
            !_isCollateralized(calcTotalDebt(_calcDebt(position)), collateralValue, config.liquidationRatio)
        ) revert CDPVault__modifyCollateralAndDebt_notSafe();

        ..snip
    }
function _isCollateralized(
  uint256 debt,
  uint256 collateralValue,
  uint256 liquidationRatio
) internal pure returns (bool) {
  return (wdiv(collateralValue, liquidationRatio) >= debt); //@audit qa users could be liquidatable in the next block
}
    function _isCollateralized(
        uint256 debt,
        uint256 collateralValue,
        uint256 liquidationRatio
    ) internal pure returns (bool) {
-        return (wdiv(collateralValue, liquidationRatio) >= debt);
+        return (wdiv(collateralValue, liquidationRatio) > debt);
    }
