diff --git a/math/trlib/Makefile b/math/trlib/Makefile
index 0cd0421d668f..0ef11f2f0dc8 100644
--- a/math/trlib/Makefile
+++ b/math/trlib/Makefile
@@ -1,27 +1,25 @@
 PORTNAME=	trlib
-DISTVERSION=	g20211004
-PORTREVISION=	1
+DISTVERSION=	0.4
 CATEGORIES=	math
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Trust Region Subproblem Solver Library
 WWW=		https://github.com/felixlen/trlib
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
 LIB_DEPENDS=	libopenblas.so:math/openblas
 TEST_DEPENDS=	check>0:devel/check \
 		gsed:textproc/gsed \
 		valgrind:devel/valgrind
 
 USES=		cmake:testing pkgconfig localbase:ldflags
 USE_LDCONFIG=	yes
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	felixlen
-GH_TAGNAME=	f168b59
 
-# some tests fail, see https://github.com/felixlen/trlib/issues/16
+# all valgrind tests fail, see https://github.com/felixlen/trlib/issues/16, due to https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259294
 
 .include <bsd.port.mk>
diff --git a/math/trlib/distinfo b/math/trlib/distinfo
index 8f65eb8066d3..c301f312fb28 100644
--- a/math/trlib/distinfo
+++ b/math/trlib/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1642493541
-SHA256 (felixlen-trlib-g20211004-f168b59_GH0.tar.gz) = 98b2fc702d08e32488ff7662133aef19b5aaad97f082a28062a77c36dbd7e72e
-SIZE (felixlen-trlib-g20211004-f168b59_GH0.tar.gz) = 91695
+TIMESTAMP = 1694672681
+SHA256 (felixlen-trlib-0.4_GH0.tar.gz) = a4bf29598fe6a127188e2675b5600eeb5ca0e77413c7f745eb353a9ddb6b0119
+SIZE (felixlen-trlib-0.4_GH0.tar.gz) = 91789
diff --git a/math/trlib/pkg-plist b/math/trlib/pkg-plist
index 03beb958814c..1883cf5f85af 100644
--- a/math/trlib/pkg-plist
+++ b/math/trlib/pkg-plist
@@ -1,19 +1,20 @@
 include/trlib.h
 include/trlib/trlib_eigen_inverse.h
 include/trlib/trlib_krylov.h
 include/trlib/trlib_leftmost.h
 include/trlib/trlib_private.h
 include/trlib/trlib_quadratic_zero.h
 include/trlib/trlib_tri_factor.h
 include/trlib/trlib_types.h
 lib/cmake/trlib/trlib-config-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/trlib/trlib-config-version.cmake
 lib/cmake/trlib/trlib-config.cmake
 lib/libtrlib.so
+lib/libtrlib.so.0.4
 share/pkgconfig/trlib.pc
 %%DATADIR%%/src/trlib_eigen_inverse.c
 %%DATADIR%%/src/trlib_krylov.c
 %%DATADIR%%/src/trlib_leftmost.c
 %%DATADIR%%/src/trlib_private.h
 %%DATADIR%%/src/trlib_quadratic_zero.c
 %%DATADIR%%/src/trlib_tri_factor.c