diff --git a/science/helfem/Makefile b/science/helfem/Makefile
index 211a0022a6cd..733dec509c21 100644
--- a/science/helfem/Makefile
+++ b/science/helfem/Makefile
@@ -1,26 +1,26 @@
 PORTNAME=	helfem
-DISTVERSION=	g20210807
+DISTVERSION=	g20210912
 CATEGORIES=	science # chemistry
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Finite element methods for electronic structure calculations
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libarmadillo.so:math/armadillo \
 		libgsl.so:math/gsl \
 		libhdf5_cpp.so:science/hdf5 \
 		libsz.so:science/szip \
 		libxc.so:science/libxc
 
 USES=		cmake fortran
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	susilehtola
 GH_PROJECT=	HelFEM
-GH_TAGNAME=	b6d8c11
+GH_TAGNAME=	21461e9
 
-CMAKE_ON=	HELFEM_FIND_DEPS # BUILD_SHARED_LIBS is broken, see https://github.com/susilehtola/HelFEM/issues/5
+CMAKE_ON=	HELFEM_FIND_DEPS BUILD_SHARED_LIBS
 
 .include <bsd.port.mk>
diff --git a/science/helfem/distinfo b/science/helfem/distinfo
index be7d72dabd75..d288399d72d8 100644
--- a/science/helfem/distinfo
+++ b/science/helfem/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1631350867
-SHA256 (susilehtola-HelFEM-g20210807-b6d8c11_GH0.tar.gz) = 76b96ca133ddc59fdce8509b10165027990d7165c66345c1cdb34a32c7ca95b4
-SIZE (susilehtola-HelFEM-g20210807-b6d8c11_GH0.tar.gz) = 1020761
+TIMESTAMP = 1631463421
+SHA256 (susilehtola-HelFEM-g20210912-21461e9_GH0.tar.gz) = 08dde1f20ff741ca0befbc0472b0264f48be82e083fb4dd34927ef9cd7bffca6
+SIZE (susilehtola-HelFEM-g20210912-21461e9_GH0.tar.gz) = 1020779
diff --git a/science/helfem/pkg-plist b/science/helfem/pkg-plist
index fa1a1c370223..115cfa74521a 100644
--- a/science/helfem/pkg-plist
+++ b/science/helfem/pkg-plist
@@ -1,16 +1,16 @@
 bin/atomic
 bin/diatomic
 bin/diatomic_cbasis
 bin/diatomic_cpl
 bin/gensap
-bin/libhelfem-common.a
-bin/liblegendre.a
+bin/libhelfem-common.so
+bin/liblegendre.so
 include/helfem.h
 include/helfem/GaussianNucleus.h
 include/helfem/HollowNucleus.h
 include/helfem/ModelPotential.h
 include/helfem/PointNucleus.h
 include/helfem/PolynomialBasis.h
 include/helfem/RadialBasis.h
 include/helfem/SphericalNucleus.h
-lib/libhelfem.a
+lib/libhelfem.so