Gerald Medrano-Rodriguez directly appeals following imposition of sentence by the district 1 court upon his guilty plea to a drug offense. His counsel has moved to withdraw, and has filed a brief under Anders v. California, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967), arguing that the court erred in refusing to grant Me-drano-Rodriguez an additional one-level reduction for acceptance of responsibility pursuant to U.S.S.G. § 3El.l(b). Medra-no-Rodriguez has filed a pro se brief, arguing for the first time on appeal that the government breached the plea agreement by withholding a section 3El.l(b) motion. The government has moved to dismiss based on an appeal waiver in the written plea agreement.

We deny the government’s motion to dismiss, because we have some concern as to whether the district court drew appellant’s attention to the waiver in the manner contemplated by Federal Rule of Criminal Procedure ll(b)(l)(N). See United States v. Boneshirt, 662 F.3d 509, 516 (8th Cir. 2011), cert. denied, - U.S. -, 132 S.Ct. 1613, 182 L.Ed.2d 217 (2012).

Reviewing for plain error, we reject as meritless Medrano-Rodriguez’s pro se argument that the government breached the plea agreement. See United States v. Yellow, 627 F.3d 706, 708-09 (8th Cir. 2010). Further, we need not reach the merits of the argument in counsel’s Anders brief. Medrano-Rodriguez was subject to a 120-month statutory minimum sentence, which would have trumped the lower range resulting from an additional level of reduction for acceptance of responsibility-producing a Guidelines range of 120-121 months in prison. The district court sentenced Medrano-Rodriguez to 120 months, the very lowest sentence that the court could have imposed in the circumstances of this case. See United States v. Chacon, *511 380 F.3d 1065, 1066 (8th Cir. 2003). Finally, having independently reviewed the record under Penson v. Ohio, 488 U.S. 75, 80, 109 S.Ct. 346, 102 L.Ed.2d 300 (1988), we find no nonfrivolous issues.

Accordingly, we grant counsel’s motion to withdraw, and we affirm.-