diff --git a/devel/mimalloc/Makefile b/devel/mimalloc/Makefile
index f1ca6f42b200..6745df074d87 100644
--- a/devel/mimalloc/Makefile
+++ b/devel/mimalloc/Makefile
@@ -1,28 +1,28 @@
 PORTNAME=	mimalloc
 DISTVERSIONPREFIX=	v
-DISTVERSION=	3.4.1
+DISTVERSION=	3.4.3
 CATEGORIES=	devel
 
 MAINTAINER=	ehaupt@FreeBSD.org
 COMMENT=	General-purpose allocator with excellent performance characteristics
 WWW=		https://github.com/microsoft/mimalloc
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		cmake:testing compiler:c++17-lang pathfix
 USE_GITHUB=	yes
 GH_ACCOUNT=	microsoft
 USE_LDCONFIG=	yes
 
 CMAKE_ON=	MI_INSTALL_TOPLEVEL
 CMAKE_OFF=	MI_BUILD_OBJECT MI_BUILD_TESTS
 
 CMAKE_TESTING_ON=	MI_BUILD_TESTS
 
 # ci pipeline creates transient tags
 PORTSCOUT=	ignore:1
 
 PLIST_SUB=	MIMALLOC_LIBVER=${DISTVERSION:R}
 
 .include <bsd.port.mk>
diff --git a/devel/mimalloc/distinfo b/devel/mimalloc/distinfo
index c3c3737efd20..f14e5984ec04 100644
--- a/devel/mimalloc/distinfo
+++ b/devel/mimalloc/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1784092706
-SHA256 (microsoft-mimalloc-v3.4.1_GH0.tar.gz) = 37107a52c16baa80c5f74861dddda7b27bb9949e41a6637691867a94c88ca446
-SIZE (microsoft-mimalloc-v3.4.1_GH0.tar.gz) = 1414101
+TIMESTAMP = 1785511073
+SHA256 (microsoft-mimalloc-v3.4.3_GH0.tar.gz) = 7b043c26b64dde66344d144fbcac3664858a4eb32197793ea2a18feb32741ca1
+SIZE (microsoft-mimalloc-v3.4.3_GH0.tar.gz) = 1414132