diff --git a/devel/mdb/Makefile b/devel/mdb/Makefile
index 69d6f6b6681a..b8fd95a10a79 100644
--- a/devel/mdb/Makefile
+++ b/devel/mdb/Makefile
@@ -1,37 +1,37 @@
 PORTNAME=	mdb
-PORTVERSION=	20230323
+PORTVERSION=	20240828
 CATEGORIES=	devel
 
 MAINTAINER=	jhb@FreeBSD.org
 COMMENT=	Solaris Modular Debugger
 WWW=		https://docs.oracle.com/cd/E19683-01/806-6545/index.html
 
 LICENSE=	CDDL
 
 USES=		compiler uidfix
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	bsdjhb
 GH_PROJECT=	illumos-gate
-GH_TAGNAME=	80a98276db
+GH_TAGNAME=	9cf028ae25
 
 ONLY_FOR_ARCHS=	amd64
 
 MAKE_ARGS=	WITH_CTF=yes
 MAKE_ARGS+=	BINDIR=${PREFIX}/bin
 MAKE_ARGS+=	LIBDIR=${PREFIX}/lib
 MAKE_ARGS+=	FREEBSD_SRC_DIR=${SRC_BASE}
 MAKE_ARGS+=	STRIP=
 WRKSRC_SUBDIR=	freebsd/cddl/usr.bin/mdb
 CFLAGS+=	-DMDB_PREFIX=\\\"${PREFIX}\\\" -g
 
 .include <bsd.port.pre.mk>
 
 .if !exists(${SRC_BASE}/cddl/compat) || !exists(${SRC_BASE}/sys/cddl/compat)
 IGNORE=		requires full source tree with CDDL sources
 .endif
 
 pre-install:
 	${MKDIR} ${STAGEDIR}${PREFIX}/lib/mdb/kvm/${MACHINE_ARCH}
 
 .include <bsd.port.post.mk>
diff --git a/devel/mdb/distinfo b/devel/mdb/distinfo
index 6ab4140796f5..1ce690c4c08b 100644
--- a/devel/mdb/distinfo
+++ b/devel/mdb/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1679605239
-SHA256 (bsdjhb-illumos-gate-20230323-80a98276db_GH0.tar.gz) = 0d07311c3503fdd0c12995aa684635c4b091453db8c4cde813addb3299156f88
-SIZE (bsdjhb-illumos-gate-20230323-80a98276db_GH0.tar.gz) = 115102877
+TIMESTAMP = 1724892064
+SHA256 (bsdjhb-illumos-gate-20240828-9cf028ae25_GH0.tar.gz) = 2abf343f8652024cd9df84ca9b6091aa27dd747cd370946c422fbd3913f9ad3c
+SIZE (bsdjhb-illumos-gate-20240828-9cf028ae25_GH0.tar.gz) = 115106419