Tex. Est. Code § 351.353

For each estate administered under orders of a county or probate court, the judge shall, if the judge considers it necessary, annually examine the condition of the estate and the solvency of the bond of the estate's personal representative. If the judge finds the representative's bond is not sufficient to protect the estate, the judge shall require the representative to execute a new bond in accordance with law. In each case, the judge, as provided by law, shall notify the representative and the sureties on the representative's bond.