diff --git a/science/elk/Makefile b/science/elk/Makefile
index 8753d84b154e..43defb8f83bd 100644
--- a/science/elk/Makefile
+++ b/science/elk/Makefile
@@ -1,85 +1,84 @@
 PORTNAME=	elk
-DISTVERSION=	9.6.8
-PORTREVISION=	1
+DISTVERSION=	10.0.1
 CATEGORIES=	science
-MASTER_SITES=	SF/${PORTNAME}/
+MASTER_SITES=	https://elk.sourceforge.io/
 PKGNAMESUFFIX=	-chemistry
 DIST_SUBDIR=	${PORTNAME}${PKGNAMESUFFIX}
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	All-electron full-potential linearised augmented-planewave code
 WWW=		http://elk.sourceforge.net/
 
 LICENSE=	GPLv3
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libblas.so:math/blas \
 		libblis.so:math/blis \
 		libfftw3.so:math/fftw3 \
 		libfftw3f.so:math/fftw3-float \
 		liblapack.so:math/lapack \
 		libopenblas.so:math/openblas \
 		libwannier.so:science/wannier90 \
 		libxc.so:science/libxc
 
 USES=		fortran gmake tar:tgz
 
 BINARY_ALIAS=	make=${GMAKE}
 
 LDFLAGS+=	${LOCALBASE}/lib/gcc${GCC_DEFAULT}/libgcc_s.so
 
 OPTIONS_DEFINE=		DOCS EXAMPLES NATIVE OPENMP
 OPTIONS_RADIO=		MPI
 OPTIONS_RADIO_MPI=	MPICH OPENMPI
 OPTIONS_DEFAULT=	OPENMP MPICH
 PARALLEL_DESC=		Enable parallelizations:
 
 NATIVE_MAKE_ARGS=	FFLAGS="${FFLAGS} -march=native -mtune=native"
 NATIVE_VARS=		FFLAGS="-march=native -mtune=native"
 
 OPENMP_VARS=		OPENMP_FLAGS=-fopenmp
 
 MPICH_USES=		mpi:mpich
 MPICH_MAKE_ARGS=	F90=${MPIF90}
 
 OPENMPI_USES=		mpi:openmpi
 OPENMPI_MAKE_ARGS=	F90=${MPIF90}
 
 PORTDOCS=		*
 PORTEXAMPLES=		*
 
 MAKE_JOBS_UNSAFE=	yes
 
 PLIST_FILES=		bin/${PORTNAME}
 
 .include <bsd.port.pre.mk>
 
 .if ${GCC_DEFAULT} >= 10
 # workaround for Type mismatch in argument 'cc' at (1); passed COMPLEX(8) to REAL(8)
 FCFLAGS+=	-fallow-argument-mismatch
 .endif
 
 post-patch:
 	@${SED} 's|%%GMAKE%%|${GMAKE}|; s|%%FC%%|${FC}|; \
 		s|%%FCFLAGS%%|${FCFLAGS}|; \
 		s|%%OPENMP_FLAGS%%|${OPENMP_FLAGS}|' \
 		< ${FILESDIR}/make.inc.in \
 		> ${WRKSRC}/make.inc
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/src/${PORTNAME} ${STAGEDIR}${PREFIX}/bin
 
 do-install-DOCS-on:
 	@${MKDIR} ${STAGEDIR}${DOCSDIR}
 	${INSTALL_DATA} ${WRKSRC}/docs/*.pdf ${STAGEDIR}${DOCSDIR}
 
 do-install-EXAMPLES-on:
 	@${MKDIR} ${STAGEDIR}${EXAMPLESDIR}
 	cd ${WRKSRC}/examples && ${COPYTREE_SHARE} . ${STAGEDIR}${EXAMPLESDIR}
 
 do-test: # several tests fail, see https://sourceforge.net/p/elk/discussion/897822/thread/5d7862dd8b/
 	@cd ${WRKSRC}/tests && ./test.sh
 
-# tests crash randomly, see https://sourceforge.net/p/elk/discussion/897820/thread/f7b5859624/
+# 1 test (test_024) fails, reported to dewhurst@mpi-halle.mpg.de on 2026-06-26 (before was: see https://sourceforge.net/p/elk/discussion/897820/thread/f7b5859624/)
 
 .include <bsd.port.post.mk>
diff --git a/science/elk/distinfo b/science/elk/distinfo
index 5de313a0e555..0f3c65aa3455 100644
--- a/science/elk/distinfo
+++ b/science/elk/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1718259024
-SHA256 (elk-chemistry/elk-9.6.8.tgz) = d5b60406744a13be42a258a6efd9545ce38a7006d8e76e40e3770368e05c1dae
-SIZE (elk-chemistry/elk-9.6.8.tgz) = 2985219
+TIMESTAMP = 1719415175
+SHA256 (elk-chemistry/elk-10.0.1.tgz) = 7476d6717644476bdaf7d6e7700c9d2e78307e1c110f7b73ae69ef0afee8e09e
+SIZE (elk-chemistry/elk-10.0.1.tgz) = 2893847
diff --git a/science/elk/files/patch-src_Makefile b/science/elk/files/patch-src_Makefile
index 7dd7cc11a06b..c03141298026 100644
--- a/science/elk/files/patch-src_Makefile
+++ b/science/elk/files/patch-src_Makefile
@@ -1,11 +1,11 @@
---- src/Makefile.orig	2024-05-30 20:02:23 UTC
+--- src/Makefile.orig	2024-06-26 12:48:58 UTC
 +++ src/Makefile
-@@ -96,7 +96,7 @@ SRC_main1 = \
+@@ -98,7 +98,7 @@ SRC_main1 = \
   rfmtsm.f90 rbshtip.f90 rfshtip.f90 zbshtip.f90 zfshtip.f90 cbsht.f90 \
   cbshtip.f90 cfshtip.f90 gencvclmt.f90 zcfmtinp.f90 zcfinp.f90 \
   ggamt_3.f90 ggair_3.f90 piezoelt.f90 magnetoelt.f90 rmtavrg.f90 \
-- zlrzncnv.f90 efieldmt.f90 writeefield.f90 sort.f90
-+ zlrzncnv.f90 efieldmt.f90 writeefield.f90 sort.f90 mkl_stub.f90
+- zlrzncnv.f90 efieldmt.f90 writeefield.f90
++ zlrzncnv.f90 efieldmt.f90 writeefield.f90 mkl_stub.f90
  
  SRC_main = $(SRC_main0) $(SRC_main1)