diff --git a/converters/simdutf/Makefile b/converters/simdutf/Makefile
index b863593f092c..fe83192450a1 100644
--- a/converters/simdutf/Makefile
+++ b/converters/simdutf/Makefile
@@ -1,39 +1,39 @@
 PORTNAME=	simdutf
 DISTVERSIONPREFIX=	v
-DISTVERSION=	6.3.1
+DISTVERSION=	6.4.0
 CATEGORIES=	converters textproc
 
 MAINTAINER=	fuz@FreeBSD.org
 COMMENT=	Unicode validation and transcoding with SIMD
 WWW=		https://simdutf.github.io/simdutf/
 
 LICENSE=	APACHE20 MIT
 LICENSE_COMB=	dual
 LICENSE_FILE_APACHE20=	${WRKSRC}/LICENSE-APACHE
 LICENSE_FILE_MIT=	${WRKSRC}/LICENSE-MIT
 
 USES=		cmake:testing compiler:c++17-lang pathfix python:build,test
 USE_GITHUB=	yes
 USE_LDCONFIG=	yes
 
 # test suite fails on armv7 with -fno-strict-aliasing
 # see https://github.com/simdutf/simdutf/issues/581
 WITHOUT_NO_STRICT_ALIASING=	yes
 
 CMAKE_TESTING_ON=	SIMDUTF_TESTS
 
 CMAKE_ON=	BUILD_SHARED_LIBS
 CMAKE_OFF=	SIMDUTF_TESTS
 
 OPTIONS_DEFINE=	ICONV TOOLS
 OPTIONS_DEFAULT=	ICONV TOOLS
 OPTIONS_SUB=		yes
 
 TOOLS_DESC=		Build tools
 
 ICONV_USES=	iconv
 ICONV_CMAKE_BOOL=	SIMDUTF_ICONV
 
 TOOLS_CMAKE_BOOL=	SIMDUTF_TOOLS
 
 .include <bsd.port.mk>
diff --git a/converters/simdutf/distinfo b/converters/simdutf/distinfo
index d6c53893ac36..132140ad72e7 100644
--- a/converters/simdutf/distinfo
+++ b/converters/simdutf/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1742052484
-SHA256 (simdutf-simdutf-v6.3.1_GH0.tar.gz) = 7a36c37db8f6dd36e03b1e894075c15f54dac6d0fe45026090eb56b941fcadca
-SIZE (simdutf-simdutf-v6.3.1_GH0.tar.gz) = 2109967
+TIMESTAMP = 1742294810
+SHA256 (simdutf-simdutf-v6.4.0_GH0.tar.gz) = 96c89f9d49b74e4bc7e6dec6c7a7d343dc078cca1ea0ae3e5b499ac1958024c9
+SIZE (simdutf-simdutf-v6.4.0_GH0.tar.gz) = 2141839
diff --git a/converters/simdutf/pkg-plist b/converters/simdutf/pkg-plist
index 731e5d4727bc..1f425d3bdfb0 100644
--- a/converters/simdutf/pkg-plist
+++ b/converters/simdutf/pkg-plist
@@ -1,20 +1,20 @@
 bin/fastbase64
 %%TOOLS%%bin/sutf
 include/simdutf.h
 include/simdutf/avx512.h
 include/simdutf/common_defs.h
 include/simdutf/compiler_check.h
 include/simdutf/encoding_types.h
 include/simdutf/error.h
 include/simdutf/implementation.h
 include/simdutf/internal/isadetection.h
 include/simdutf/portability.h
 include/simdutf/simdutf_version.h
 lib/cmake/simdutf/simdutf-config-version.cmake
 lib/cmake/simdutf/simdutf-config.cmake
 lib/cmake/simdutf/simdutfTargets-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/simdutf/simdutfTargets.cmake
-lib/libsimdutf.so.18.0.0
-lib/libsimdutf.so.18
+lib/libsimdutf.so.19.0.0
+lib/libsimdutf.so.19
 lib/libsimdutf.so
 libdata/pkgconfig/simdutf.pc