OPINION In five issues, David Sheller challenges a modified final judgment rendered by the trial court which assessed monetary sanctions against Sheller for his conduct during the course of his representation of Carl Sousa, personal representative of the Estate of Elizabeth Betty Jean Wilwerding in an arbitration proceeding as well as in the trial court. We conclude the modified final judgment was signed outside of the trial court’s plenary power and is void. Therefore, we dismiss this appeal. Background David Sheller represented Sousa in filing suit against Goldstein Faucett and Prebeg, LLP; CP Windup, LLP f/k/a Clearman Prebeg, LLP; Prebeg Faucett & Abbott, LLC; Christopher Faucett, individually; Stephen Abbott, individually; Matthew Prebeg, individually; Newton Schwartz, individually; and NBS Acquisitions Corp. (the IP attorneys) in Harris County district court in 2016. On the motion of the IP attorneys, the case was referred to arbitration pursuant to the contingency-fee agreement between Betty Wilwerding, Schwartz, and Goldstein, Faucett & Prebeg, LLP (the law firm at which Faucett practiced at the time) and subsequently ratified by Sousa.[1] After a lengthy and contentious arbitration proceeding, the arbitrator issued an award in March 2020 which determined Sousa did not prove any of her claims against the IP attorneys and should take nothing on her claims. The award also determined that CP Windup, Schwartz, and NBS Acquisitions successfully proved their counterclaims against Sousa and assessed attorney’s fees against Sousa, as well as costs and expenses pursuant to AAA rules. The trial court confirmed the award on the submission of the parties’ motions and rendered a final take-nothing judgment on Sousa’s claims on May 4, 2020. Sousa filed a motion for new trial (as well as a supplemental motion for new trial), which the trial court denied less than two weeks later. On May 29, 2020, the IP attorneys filed a motion for sanctions asking the trial court to sanction Sheller for his repeated and “extreme” abuse of the judicial system. The trial court granted the IP attorneys’ motion and signed an order granting the motion for sanctions and rendering a modified final judgment. Sheller now appeals the modified final judgment. Analysis Sheller argues on appeal that: (1) the modified final judgment is void because it violates the one-judgment rule; (2) the modified final judgment is void because it was signed after plenary power expired; (3) the trial court erred by awarding sanctions against Sheller after the arbitrator refused to award sanctions; (4) the sanctions award was not supported by factually- and legally-sufficient evidence; and (5) the trial court abused its discretion in awarding substantial sanctions against Sheller “in the absence of evidence that the sanctions imposed are no more severe than necessary to satisfy their legitimate purpose.” We begin with Sheller’s issue 2 because it is dispositive of our jurisdiction and this appeal. Though Sousa filed a motion for new trial, potentially extending plenary power through July 18, 2020, the trial court denied Sousa’s motion for new trial on May 18, 2020. See Tex. R. App. P. 26.1(a)(1). Therefore, the trial court’s plenary power ended on June 18, 2020, unless the IP attorneys’ motion for sanctions further extended plenary power. See Tex. R. Civ. P. 329b(e). Because the motion for sanctions was filed within 30 days of the final judgment, it extended plenary power only if the motion can be construed as a motion to modify within the meaning of Rule 329b(g). See Tex. R. Civ. P. 329b(g). If it cannot be construed as a motion to modify, plenary power expired before the trial court signed the modified final judgment. For thirty days after signing the judgment, a trial court has plenary power to vacate it, to modify or correct it, or to grant a new trial. See Tex. R. Civ. P. 329b. If within that time a party files a motion for a new trial or a motion to vacate, modify, correct, or reform the judgment, then the trial court’s plenary power is extended for thirty days after the last such motion is expressly or implicitly overruled. Id. “[T]he filing of a motion for new trial, Tex. R. Civ. P. 329b(e), or a motion to modify, correct or reform the judgment, Tex. R. Civ. P. 329b(g), within the initial thirty-day period extends the trial court’s jurisdiction over its judgment up to an additional seventy-five days, depending on when or whether the court acts on the motions.” Lane Bank Equip. Co. v. Smith S. Equip., Inc., 10 S.W.3d 308, 310 (Tex. 2000); see Tex. R. Civ. P. 329b(c). In Lane, the supreme court concluded that a motion for sanctions can be construed to extend plenary power if that motion, on its face, is a motion to modify, correct, or reform the existing judgment within the meaning of Rule 329b(g). 10 S.W.3d at 312. The motion for sanctions in Lane specifically sought the rendition of a new final judgment therefore was a motion to modify the judgment. Id. at 310. However, the court in Lane considered that a motion for sanctions that does not seek a substantive change in the judgment should not be construed as a motion to modify within the meaning of Rule 329b(g).[2] See id. at 314 (“a timely filed postjudgment motion that seeks a substantive change in an existing judgment qualifies as a motion to modify under Rule 329b(g)”); see also id. at 319 (Hecht, J., concurring) (“The Court adds, however, that if the motion had not expressly requested a change in the judgment itself, but had merely requested sanctions that could have been imposed by a separate order, the motion would not have extended the court’s plenary power or the appellate timetable.”). This court has previously considered whether a postjudgment motion for sanctions can be construed as a motion to modify the judgment. See Mann v. Kendall Home Builders Constr. Partners I, Ltd., 464 S.W.3d 84, 89 (Tex. App.— Houston [14th Dist.] 2015, no pet.). In Kendall Home Builders, the party seeking sanctions filed a postjudgment motion for sanctions that did not include an explicit request for the trial court to render a new final judgment; however, the proposed order specifically included relief that sought a change in the existing judgment. Id. at 90.[3] This court concluded that the motion for sanctions could be construed as a motion to modify, although the award of sanctions was ultimately reversed, and judgment was rendered denying sanctions. Id. at 97. Following precedent in Lane and Kendall Home Builders, the determination of whether a postjudgment motion for sanctions can be construed as a motion to modify the judgment is fact-specific. Therefore, we turn to the motion filed by the IP attorneys. The IP attorneys’ motion for sanctions does not specifically request a change or modification to the final judgment as was requested in Lane. Neither does the proposed order submitted with the motion contain relief in the form of a modified judgment. The IP attorneys’ proposed order does not seek judgment with respect to the sanctions as the movant did in Kendall Home Builders. On its face, there is nothing included within the motion or the accompanying proposed order which would suggest that the IP attorneys sought a modification to the final judgment. The IP attorneys argue in response that their motion for sanctions did seek a substantive change to the final judgment. Specifically, the IP attorneys refer to language in the motion for sanctions which states: “Movants submit that it is only fair that Sheller bear the burden of this award along with his client[.]” The IP attorneys also point to their proposed order which requests the following relief: “ David L. Sheller be and hereby is SANCTIONED and ORDERED to pay to Defendants the sum of $2,057,169.41 — with, and/or in lieu of, Plaintiff, for those attorneys’ fees and costs already awarded the Defendants against Plaintiff.”[4] Civil Practice and Remedies Code chapter 10 governs sanctions that may be imposed on a “person, a party represented by the person, or both” for filing frivolous pleadings and motions. Tex. Civ. Prac. & Rem. Code Ann. § 10.004(a). A sanction may include: (1) a directive to the violator to perform, or refrain from performing, an act; (2) an order to pay a penalty to the court; and (3) an order to pay to the other party the amount of the reasonable expenses incurred by the other party because of the filing of the pleading or motion, including reasonable attorney’s fees. Id. § 10.004(b). Because an award of sanctions might result in a stand-alone order or it might result in a modification to the final judgment, it is important that a motion for sanctions, on its face, indicate whether it seeks a modification of the final judgment. Lane, 10 S.W.3d at 312, 314. The language relied on by the IP attorneys does not, on its face, identify any substantive change that it seeks to make to the judgment. The proposed order accompanying the motion for sanctions seeks alternative relief in the form of sanctions “with, and/or in lieu of, Plaintiff.” Without a specific request for the modification of the judgment, a stand-alone order of sanctions would address a request that Sheller be sanctioned “with” Sousa, and the legal effect of the motion does not necessitate a modification to the judgment. Therefore, we conclude the IP attorneys’ motion for sanctions was not a motion to modify the judgment within the meaning of Rule 329b(g). Therefore, the modified final judgment was signed outside plenary power and is void. Conclusion The trial court’s signing of the modified final judgment was void. See Tex. R. Civ. P. 329b(f). Although appellate courts do not have jurisdiction to address the merits of appeals from void orders or judgments, they do have jurisdiction “to determine that the order or judgment underlying the appeal is void and make appropriate orders based on that determination.” Freedom Commc’ns., Inc. v. Coronado, 372 S.W.3d 621, 623–24 (Tex. 2012).[5] We dismiss this appeal for lack of subject-matter jurisdiction. /s/ Charles A. Spain Justice Panel consists of Justices Wise, Spain, and Hassan.