diff --git a/sci-libs/ButterflyPACK/ButterflyPACK-2.1.1.ebuild b/sci-libs/ButterflyPACK/ButterflyPACK-2.1.1.ebuild
new file mode 100644
index 0000000000..437e8815f5
--- /dev/null
+++ b/sci-libs/ButterflyPACK/ButterflyPACK-2.1.1.ebuild
@@ -0,0 +1,44 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit cmake fortran-2
+
+DESCRIPTION="Mathematical software for solving large-scale dense linear systems"
+HOMEPAGE="https://github.com/liuyangzhuan/ButterflyPACK"
+SRC_URI="https://github.com/liuyangzhuan/${PN}/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+
+KEYWORDS="~amd64"
+LICENSE="BSD"
+SLOT="0"
+IUSE="arpack magma"
+
+RDEPEND="
+	sci-libs/scalapack
+	virtual/blas
+	virtual/lapack
+	virtual/mpi
+
+	arpack? ( sci-libs/arpack )
+	magma? ( sci-libs/magma )
+"
+DEPEND="${RDEPEND}"
+
+DOCS=( README.md CHANGELOG )
+
+src_configure() {
+	local mycmakeargs=(
+		-DBUILD_SHARED_LIBS=ON
+
+		-DTPL_ARPACK_LIBRARIES=$(usex arpack)
+		-DTPL_MAGMA_LIBRARIES=$(usex magma)
+	)
+	cmake_src_configure
+}
+
+src_install() {
+	cmake_src_install
+	insinto "/usr/share/octave/site/m/${PN}"
+	doins -r MATLAB/*
+}
diff --git a/sci-libs/ButterflyPACK/Manifest b/sci-libs/ButterflyPACK/Manifest
index 4a536fc2c2..79063e3229 100644
--- a/sci-libs/ButterflyPACK/Manifest
+++ b/sci-libs/ButterflyPACK/Manifest
@@ -1 +1,2 @@
 DIST ButterflyPACK-2.1.0.tar.gz 378160677 BLAKE2B 0846f57c45717a4dd2bdd4eb04f7e0ca7f2ac8bd9873307c4cd9342d3696f885ede2b65a5a6c3aed55fcc70cfb50bbe9d45957b14c4f8208ffc11a8a4ac6134d SHA512 4f06e60d98f8dd88f40c49b824e6435af5674955326016eab2a62feda31735de15e30ae86f7badb5f31e53be8882aa6535ba52345680a65215608ab75775c2bf
+DIST ButterflyPACK-2.1.1.tar.gz 378145822 BLAKE2B 84c4a176afe0ddda711bc6c3d1435a51d3796d8d58ae85444320451769a0080724d61c8abe2e7cca67f22112d5f6a7847656bef550cc878f44862d60f9a36ca0 SHA512 ee032a79a788f22dc33b074f568d54e9d4572281bd1b2c9e31036d16a02b54542a40f5b42c3d50e1ace373c5ca74dff45e77a1f3b60bad8c6f4bd53b311cfc24