diff --git a/math/openblas/Makefile b/math/openblas/Makefile
index ce113c4a9c4c..bb92591615fe 100644
--- a/math/openblas/Makefile
+++ b/math/openblas/Makefile
@@ -1,142 +1,145 @@
 # Created by: Eijiro Shibusawa <ej-sib@ice.uec.ac.jp>
 # $FreeBSD$
 
 PORTNAME=	openblas
 DISTVERSIONPREFIX=	v
 DISTVERSION=	0.3.9
-PORTREVISION=	1
+PORTREVISION=	2
 PORTEPOCH=	1
 CATEGORIES=	math
 MASTER_SITES=	NL/lapack/timing/:lapack_tmg
 DISTFILES=	large.tgz:lapack_tmg \
 		timing.tgz:lapack_tmg
 DIST_SUBDIR=	openblas
 
+PATCH_SITES=	https://github.com/${GH_ACCOUNT}/${GH_PROJECT}/commit/
+PATCHFILES=	ee2e758278b5d82b7242f505ea694f082ef65879.patch:-p1 # fixes the regression: https://github.com/xianyi/OpenBLAS/pull/2512
+
 MAINTAINER=	phd_kimberlite@yahoo.co.jp
 COMMENT=	Optimized BLAS library based on GotoBLAS2
 
 LICENSE=	BSD3CLAUSE
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 USES=		fortran gmake perl5 pkgconfig
 
 CONFLICTS_INSTALL=	cblas lapacke
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	xianyi
 GH_PROJECT=	OpenBLAS
 LARGE_FILE=	large.tgz
 TIMING_FILE=	timing.tgz
 
 USE_LDCONFIG=	yes
 USE_PERL5=	build
 
 OPENBLAS_SVER=	0
 TEST_TARGET=	tests
 
 PLIST_SUB+=	PORTVERSION=${PORTVERSION}
 
 OPTIONS_DEFINE=			DYNAMIC_ARCH INTERFACE64 OPENMP
 OPTIONS_DEFAULT=		OPENMP
 OPTIONS_DEFINE_i386=		AVX AVX2
 OPTIONS_DEFINE_amd64=		AVX AVX2
 OPTIONS_DEFINE_powerpc64=	POWER6
 OPTIONS_EXCLUDE_powerpc64=	OPENMP
 OPTIONS_SUB=	yes
 
 .if defined(BATCH) || defined(PACKAGE_BUILDING)
 OPTIONS_DEFAULT_i386=	DYNAMIC_ARCH
 OPTIONS_DEFAULT_amd64=	DYNAMIC_ARCH
 .endif
 
 DYNAMIC_ARCH_DESC=	Support multiple CPU types on i386 and amd64
 INTERFACE64_DESC=	Use 8 byte integers on 64-bit architectures
 OPENMP_DESC=		Use OpenMP for threading
 AVX_DESC=		Support Advanced Vector Extensions (AVX)
 AVX2_DESC=		Support Advanced Vector Extensions 2 (AVX2)
 POWER6_DESC=		Optimize for POWER6, instead of the default PPC970
 
 .include <bsd.port.options.mk>
 
 .if ${ARCH} == powerpc64
 USE_GCC=		yes
 .  if ${PORT_OPTIONS:MPOWER6}
 TARGET_CPU_ARCH=	POWER6
 .else
 TARGET_CPU_ARCH=	PPC970
 .  endif
 .endif
 
 MAXTHREADS?=	64
 
 .if ! ${PORT_OPTIONS:MDYNAMIC_ARCH} && ( ${ARCH} == "amd64" || ${ARCH} == "i386" )
 MANUAL_PACKAGE_BUILD=	Optimizes for the build machine.
 .endif
 
 .if ${PORT_OPTIONS:MOPENMP}
 USES+=		compiler:openmp
 .else
 USES+=		compiler:c11
 .endif
 
 .include <bsd.port.pre.mk>
 
 .if ${PORT_OPTIONS:MOPENMP}
 .if ${CHOSEN_COMPILER_TYPE} == gcc
 USE_GCC=	yes
 .endif
 .endif
 
 post-extract:
 	cd ${DISTDIR}/${DIST_SUBDIR} ; \
 	${CP} ${LARGE_FILE} ${TIMING_FILE} ${WRKSRC}
 
 post-patch:
 	@${ECHO} MAKE_NB_JOBS=-1 >> ${WRKSRC}/Makefile.rule
 	@${ECHO} NUM_THREADS=${MAXTHREADS} >> ${WRKSRC}/Makefile.rule
 	@${ECHO} USE_THREAD=1 >> ${WRKSRC}/Makefile.rule
 .if ! ${PORT_OPTIONS:MAVX}
 	@${ECHO} NO_AVX=1 >> ${WRKSRC}/Makefile.rule
 .endif
 .if ! ${PORT_OPTIONS:MAVX2}
 	@${ECHO} NO_AVX2=1 >> ${WRKSRC}/Makefile.rule
 .endif
 .if ${PORT_OPTIONS:MDYNAMIC_ARCH}
 	@${ECHO} DYNAMIC_ARCH=1 >> ${WRKSRC}/Makefile.rule
 	@${ECHO} DYNAMIC_OLDER=1 >> ${WRKSRC}/Makefile.rule
 .endif
 .if defined(TARGET_CPU_ARCH)
 	@${ECHO} TARGET=${TARGET_CPU_ARCH} >> ${WRKSRC}/Makefile.rule
 .endif
 .if ${PORT_OPTIONS:MINTERFACE64}
 	@${ECHO} INTERFACE64=1 >> ${WRKSRC}/Makefile.rule
 .endif
 .if ${PORT_OPTIONS:MOPENMP}
 	@${ECHO} USE_OPENMP=1 >> ${WRKSRC}/Makefile.rule
 .endif
 .if ${ARCH:M*64} == ""
 	@${ECHO} BINARY=32 >> ${WRKSRC}/Makefile.rule
 .else
 	@${ECHO} BINARY=64 >> ${WRKSRC}/Makefile.rule
 .endif
 
 post-patch-OPENMP-on:
 	@${REINPLACE_CMD} -e "s+OPENBLAS_NUM_THREADS+OMP_NUM_THREADS+g" \
 		${WRKSRC}/test/Makefile \
 		${WRKSRC}/ctest/Makefile
 
 BENCHMARK_MAXTHREADS?=	${MAXTHREADS}
 .if ${PORT_OPTIONS:MOPENMP}
 BENCHMARK_THREADS_FLAG=	OMP_NUM_THREADS=${BENCHMARK_MAXTHREADS}
 .else
 BENCHMARK_THREADS_FLAG=	OPENBLAS_NUM_THREADS=${BENCHMARK_MAXTHREADS}
 .endif
 
 benchmark: build
 	cd ${WRKSRC} ; ${SETENV} ${MAKE_CMD} ${MAKE_ARGS} hpl
 	cd ${WRKSRC}/benchmark ; ${SETENV} ${BENCHMARK_THREADS_FLAG} ${MAKE_CMD} ${MAKE_ARGS}
 
 post-install-DYNAMIC_ARCH-off:
 	cd ${STAGEDIR}${PREFIX} && ls lib/libopenblas_*p-r${PORTVERSION}.* >> ${TMPPLIST}
 
 .include <bsd.port.post.mk>
diff --git a/math/openblas/distinfo b/math/openblas/distinfo
index c10c5e73dcbc..d449c1e19e94 100644
--- a/math/openblas/distinfo
+++ b/math/openblas/distinfo
@@ -1,9 +1,9 @@
-TIMESTAMP = 1586429826
+TIMESTAMP = 1588802954
 SHA256 (openblas/large.tgz) = f328d88b7fa97722f271d7d0cfea1c220e0f8e5ed5ff01d8ef1eb51d6f4243a1
 SIZE (openblas/large.tgz) = 2595
 SHA256 (openblas/timing.tgz) = 999c65f8ea8bd4eac7f1c7f3463d4946917afd20a997807300fe35d70122f3af
 SIZE (openblas/timing.tgz) = 1059485
 SHA256 (openblas/xianyi-OpenBLAS-v0.3.9_GH0.tar.gz) = 17d4677264dfbc4433e97076220adc79b050e4f8a083ea3f853a53af253bc380
 SIZE (openblas/xianyi-OpenBLAS-v0.3.9_GH0.tar.gz) = 12184323
-SHA256 (openblas/3e67017ac8f0246f5fc14572ca663fb0968d1046.patch) = 06652cad19bf1f8858c41b6ade87efb4450a4629a61795ef454fac7c300e0b01
-SIZE (openblas/3e67017ac8f0246f5fc14572ca663fb0968d1046.patch) = 4920
+SHA256 (openblas/ee2e758278b5d82b7242f505ea694f082ef65879.patch) = 9210a94ae418b4ce6d9f7fab4e00dd3155451f5ef3769536a4d954a2149ca733
+SIZE (openblas/ee2e758278b5d82b7242f505ea694f082ef65879.patch) = 2028