diff --git a/math/palp/Makefile b/math/palp/Makefile
index ad94c555b671..b00d7a5b72a8 100644
--- a/math/palp/Makefile
+++ b/math/palp/Makefile
@@ -1,50 +1,29 @@
 PORTNAME=	palp
-PORTVERSION=	2.20
+PORTVERSION=	2.21
 CATEGORIES=	math
 MASTER_SITES=	http://hep.itp.tuwien.ac.at/~kreuzer/CY/palp/
 
 MAINTAINER=	thierry@FreeBSD.org
 COMMENT=	Package for Analyzing Lattice Polytopes
 WWW=		http://hep.itp.tuwien.ac.at/~kreuzer/CY/CYpalp.html
 
 LICENSE=	GPLv3
 
 USES=		gmake
 MAKEFILE=	GNUmakefile
+ALL_TARGET=	all-dims
+TEST_TARGET=	check
 
 DIMENSIONS=	4 5 6 11
 RESDIR=		${WRKDIR}/result
 PROGS=		class cws mori nef poly
 
-pre-build:
-	${MV} ${WRKSRC}/Global.h ${WRKSRC}/Global.h-template
-	${MKDIR} ${RESDIR}
-
-do-build:
-.for dim in ${DIMENSIONS}
-	${SED} "s/^#define[^a-zA-Z]*POLY_Dmax.*/#define POLY_Dmax ${dim}/"	\
-		${WRKSRC}/Global.h-template > ${WRKSRC}/Global.h
-	(cd ${BUILD_WRKSRC} && ${DO_MAKE_BUILD} ${ALL_TARGET})
-. for prog in ${PROGS}
-	${CP} ${WRKSRC}/${prog}.x ${RESDIR}/${prog}-${dim}d.x
-. endfor
-	(cd ${BUILD_WRKSRC} && ${DO_MAKE_BUILD} cleanall)
-.endfor
-
 do-install:
-.for dim in ${DIMENSIONS}
-. for prog in ${PROGS}
-	${INSTALL_PROGRAM} ${RESDIR}/${prog}-${dim}d.x ${STAGEDIR}${PREFIX}/bin
-. endfor
-.endfor
-	# symlinks for the default dimension
 .for prog in ${PROGS}
-	(cd ${STAGEDIR}${PREFIX}/bin &&	\
-		${LN} -sf ${prog}-6d.x ${STAGEDIR}${PREFIX}/bin/${prog}.x)
+	${INSTALL_PROGRAM} ${WRKSRC}/${prog}.x ${STAGEDIR}${PREFIX}/bin
+. for dim in ${DIMENSIONS}
+	${INSTALL_PROGRAM} ${WRKSRC}/${prog}-${dim}d.x ${STAGEDIR}${PREFIX}/bin
+. endfor
 .endfor
 
-test:
-	# To be completed
-	${ECHO_CMD} "24 3 3 4 4 10" | ${RESDIR}/class-6d.x -f -po zbin
-
 .include <bsd.port.mk>
diff --git a/math/palp/distinfo b/math/palp/distinfo
index 4be521898d8a..cd6d6d8e4072 100644
--- a/math/palp/distinfo
+++ b/math/palp/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1603211915
-SHA256 (palp-2.20.tar.gz) = 723e89e78b2d3d94a720dd770c11b932b3e6b56f8a49e0bf3621c776f7a02ce0
-SIZE (palp-2.20.tar.gz) = 237664
+TIMESTAMP = 1710269167
+SHA256 (palp-2.21.tar.gz) = 7e4a7bf219998a844c0bcce0a176e49d0743cb4b505a0e195329bf2ec196ddd7
+SIZE (palp-2.21.tar.gz) = 262681
diff --git a/math/palp/pkg-descr b/math/palp/pkg-descr
index b7c48192e160..63166a6bd9ea 100644
--- a/math/palp/pkg-descr
+++ b/math/palp/pkg-descr
@@ -1,16 +1,18 @@
 A Package for Analyzing Lattice Polytopes (PALP) is a set of C programs for
 calculations with lattice polytopes and applications to toric geometry.
 
 It contains routines for vertex and facet enumeration, computation of incidences
 and symmetries, as well as completion of the set of lattice points in the convex
 hull of a given set of points. In addition, there are procedures specialised to
 reflexive polytopes such as the enumeration of reflexive subpolytopes, and
 applications to toric geometry and string theory, like the computation of Hodge
 data and fibration structures for toric Calabi-Yau varieties.  The package is
 well tested and optimised in speed as it was used for time consuming tasks such
 as the classification of reflexive polyhedra in 4 dimensions and the creation
 and manipulation of very large lists of 5-dimensional polyhedra.
 
 While originally intended for low-dimensional applications, the algorithms work
 in any dimension and our key routine for vertex and facet enumeration compares
 well with existing packages.
+
+See also <https://gitlab.com/stringstuwien/PALP/>.