diff --git a/math/fast_float/Makefile b/math/fast_float/Makefile
index 0892294d412d..ae1ddd68e78a 100644
--- a/math/fast_float/Makefile
+++ b/math/fast_float/Makefile
@@ -1,25 +1,25 @@
 PORTNAME=	fast_float
-PORTVERSION=	5.3.0
+PORTVERSION=	6.0.0
 DISTVERSIONPREFIX=	v
 CATEGORIES=	math
 
 MAINTAINER=	sunpoet@FreeBSD.org
 COMMENT=	Fast and exact C++ number parsing library
 WWW=		https://github.com/fastfloat/fast_float
 
 LICENSE=	APACHE20 BSL MIT
 LICENSE_COMB=	dual
 LICENSE_FILE=	${WRKSRC}/LICENSE-APACHE
 LICENSE_FILE=	${WRKSRC}/LICENSE-BOOST
 LICENSE_FILE=	${WRKSRC}/LICENSE-MIT
 
 USES=		cmake compiler:c++11-lang
 
 CMAKE_OFF=	FASTFLOAT_SANITIZE FASTFLOAT_TEST
 CMAKE_ON=	FASTFLOAT_INSTALL
 NO_ARCH=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	fastfloat
 
 .include <bsd.port.mk>
diff --git a/math/fast_float/distinfo b/math/fast_float/distinfo
index b3790eb5ed00..2f63625ae0d9 100644
--- a/math/fast_float/distinfo
+++ b/math/fast_float/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1699985559
-SHA256 (fastfloat-fast_float-v5.3.0_GH0.tar.gz) = 2f3bc50670455534dcaedc9dcd0517b71152f319d0cec8625f21c51d23eaf4b9
-SIZE (fastfloat-fast_float-v5.3.0_GH0.tar.gz) = 86838
+TIMESTAMP = 1703227812
+SHA256 (fastfloat-fast_float-v6.0.0_GH0.tar.gz) = 7e98671ef4cc7ed7f44b3b13f80156c8d2d9244fac55deace28bd05b0a2c7c8e
+SIZE (fastfloat-fast_float-v6.0.0_GH0.tar.gz) = 94395