diff --git a/science/libint2/Makefile b/science/libint2/Makefile
index dc248431c5465..96a5cf0559a73 100644
--- a/science/libint2/Makefile
+++ b/science/libint2/Makefile
@@ -1,7 +1,6 @@
 PORTNAME=	libint
 DISTVERSIONPREFIX=	v
-DISTVERSION=	2.7.2
-PORTREVISION=	1
+DISTVERSION=	2.8.1
 CATEGORIES=	science
 PKGNAMESUFFIX=	2
 
diff --git a/science/libint2/distinfo b/science/libint2/distinfo
index 65d3993a7b683..9257246ad63f2 100644
--- a/science/libint2/distinfo
+++ b/science/libint2/distinfo
@@ -1,3 +1,3 @@
-TIMESTAMP = 1656211544
-SHA256 (evaleev-libint-v2.7.2_GH0.tar.gz) = fd0466ce9eb6786b8c5bbe3d510e387ed44b198a163264dfd7e60b337e295fd9
-SIZE (evaleev-libint-v2.7.2_GH0.tar.gz) = 24795669
+TIMESTAMP = 1703053093
+SHA256 (evaleev-libint-v2.8.1_GH0.tar.gz) = 54ae9c55f03f1989ee4792ab1ec24eda8ac88126f9c11f3723ed76a3275b3e24
+SIZE (evaleev-libint-v2.8.1_GH0.tar.gz) = 25212053
diff --git a/science/libint2/pkg-plist b/science/libint2/pkg-plist
index 026553fa4fabc..4e27373997e26 100644
--- a/science/libint2/pkg-plist
+++ b/science/libint2/pkg-plist
@@ -48,6 +48,7 @@ include/libint2/tensor.h
 include/libint2/util/any.h
 include/libint2/util/array_adaptor.h
 include/libint2/util/compressed_pair.h
+include/libint2/util/configuration.h
 include/libint2/util/cxxstd.h
 include/libint2/util/deprecated.h
 include/libint2/util/generated/libint2_iface.h
@@ -67,14 +68,15 @@ include/libint2/util/vector_x86.h
 lib/libint2.so
 lib/libint2.so.2
 lib/libint2.so.2.0.3
-%%STATIC%%lib/libint2.a
 libdata/pkgconfig/libint2.pc
 %%DATADIR%%/%%VER%%/basis/3-21g.g94
 %%DATADIR%%/%%VER%%/basis/6-311g**.g94
-%%DATADIR%%/%%VER%%/basis/6-31G*.g94
+%%DATADIR%%/%%VER%%/basis/6-311gss.g94
 %%DATADIR%%/%%VER%%/basis/6-31g**.g94
 %%DATADIR%%/%%VER%%/basis/6-31g*.g94
 %%DATADIR%%/%%VER%%/basis/6-31g.g94
+%%DATADIR%%/%%VER%%/basis/6-31gs.g94
+%%DATADIR%%/%%VER%%/basis/6-31gss.g94
 %%DATADIR%%/%%VER%%/basis/ano-rcc.g94
 %%DATADIR%%/%%VER%%/basis/aug-cc-pv5z-cabs.g94
 %%DATADIR%%/%%VER%%/basis/aug-cc-pvdz-cabs.g94
@@ -112,6 +114,7 @@ libdata/pkgconfig/libint2.pc
 %%DATADIR%%/%%VER%%/basis/cc-pvtz-f12-cabs.g94
 %%DATADIR%%/%%VER%%/basis/cc-pvtz-f12.g94
 %%DATADIR%%/%%VER%%/basis/cc-pvtz-jkfit.g94
+%%DATADIR%%/%%VER%%/basis/cc-pvtz-mini.g94
 %%DATADIR%%/%%VER%%/basis/cc-pvtz-ri.g94
 %%DATADIR%%/%%VER%%/basis/cc-pvtz.g94
 %%DATADIR%%/%%VER%%/basis/def2-qzvp-c.g94