diff --git a/math/GiNaC/Makefile b/math/GiNaC/Makefile
index 8b1efc18b6dd..85a6adb50c66 100644
--- a/math/GiNaC/Makefile
+++ b/math/GiNaC/Makefile
@@ -1,44 +1,39 @@
 # Created by: Ying-Chieh Liao <ijliao@FreeBSD.org>
 
 PORTNAME=	GiNaC
-PORTVERSION=	1.7.11
+PORTVERSION=	1.8.1
 CATEGORIES=	math
 MASTER_SITES=	ftp://ftpthep.physik.uni-mainz.de/pub/GiNaC/ \
 		http://www.ginac.de/
 DISTNAME=	${PORTNAME:tl}-${PORTVERSION}
 
 MAINTAINER=	stephen@FreeBSD.org
 COMMENT=	C++ library for symbolic mathematical calculations
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/COPYING
 
 LIB_DEPENDS=	libcln.so:math/cln
 
-USES=		gmake libtool makeinfo pathfix pkgconfig python:build \
-		tar:bzip2 compiler:c++11-lib
+USES=		compiler:c++11-lib gmake libtool makeinfo ncurses pathfix \
+		pkgconfig python:build readline tar:bzip2
 GNU_CONFIGURE=	yes
 USE_LDCONFIG=	yes
 INSTALL_TARGET=	install-strip
+TEST_TARGET=	check
 
 CPPFLAGS+=	-I${LOCALBASE}/include
 LDFLAGS+=	-L${LOCALBASE}/lib
 
 INFO=		ginac ginac-examples
 
 .include <bsd.port.pre.mk>
 
 post-patch:
 	@${REINPLACE_CMD} -e 's|-ldl||g' ${WRKSRC}/configure
 .if ${ARCH} != "i386"
 	@${REINPLACE_CMD} -e 's|unsigned|size_t|g' \
 		${WRKSRC}/ginac/parser/parser.cpp
 .endif
-	@${REINPLACE_CMD} -e 's|python3|${PYTHON_CMD}|' \
-		${WRKSRC}/scripts/yaptu.py \
-		${WRKSRC}/scripts/fixupind.py \
-		${WRKSRC}/ginac/function.py \
-		${WRKSRC}/ginsh/ginsh_fcn_help.py \
-		${WRKSRC}/ginsh/ginsh_op_help.py
 
 .include <bsd.port.post.mk>
diff --git a/math/GiNaC/distinfo b/math/GiNaC/distinfo
index 5cceef3130f7..a44cbf0f5935 100644
--- a/math/GiNaC/distinfo
+++ b/math/GiNaC/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1596594247
-SHA256 (ginac-1.7.11.tar.bz2) = 96529ddef6ae9788aca0093f4b85fc4e34318bc6704e628e6423ab5a92dfe929
-SIZE (ginac-1.7.11.tar.bz2) = 1077491
+TIMESTAMP = 1629405569
+SHA256 (ginac-1.8.1.tar.bz2) = f1695dbd6b187061ef3fba507648c9d6dba438f733b058c16f9278cbdcf5e1ab
+SIZE (ginac-1.8.1.tar.bz2) = 1128166
diff --git a/math/GiNaC/pkg-plist b/math/GiNaC/pkg-plist
index 06aed6fb446d..cd3ce12b2460 100644
--- a/math/GiNaC/pkg-plist
+++ b/math/GiNaC/pkg-plist
@@ -1,57 +1,58 @@
 bin/ginsh
 bin/viewgar
-include/ginac/compiler.h
-include/ginac/factor.h
-include/ginac/parse_context.h
-include/ginac/parser.h
 include/ginac/add.h
 include/ginac/archive.h
 include/ginac/assertion.h
 include/ginac/basic.h
 include/ginac/class_info.h
 include/ginac/clifford.h
 include/ginac/color.h
+include/ginac/compiler.h
 include/ginac/constant.h
 include/ginac/container.h
 include/ginac/ex.h
 include/ginac/excompiler.h
 include/ginac/expair.h
 include/ginac/expairseq.h
 include/ginac/exprseq.h
+include/ginac/factor.h
 include/ginac/fail.h
 include/ginac/fderivative.h
 include/ginac/flags.h
 include/ginac/function.h
 include/ginac/ginac.h
 include/ginac/hash_map.h
 include/ginac/idx.h
 include/ginac/indexed.h
 include/ginac/inifcns.h
 include/ginac/integral.h
+include/ginac/integration_kernel.h
 include/ginac/lst.h
 include/ginac/matrix.h
 include/ginac/mul.h
 include/ginac/ncmul.h
 include/ginac/normal.h
 include/ginac/numeric.h
 include/ginac/operators.h
+include/ginac/parse_context.h
+include/ginac/parser.h
 include/ginac/power.h
 include/ginac/print.h
 include/ginac/pseries.h
 include/ginac/ptr.h
 include/ginac/registrar.h
 include/ginac/relational.h
 include/ginac/structure.h
 include/ginac/symbol.h
 include/ginac/symmetry.h
 include/ginac/tensor.h
 include/ginac/version.h
 include/ginac/wildcard.h
 lib/libginac.a
 lib/libginac.so
-lib/libginac.so.6
-lib/libginac.so.6.4.5
+lib/libginac.so.11
+lib/libginac.so.11.1.0
 libdata/pkgconfig/ginac.pc
 libexec/ginac-excompiler
 man/man1/ginsh.1.gz
 man/man1/viewgar.1.gz