diff --git a/sci-biology/ants/ChangeLog b/sci-biology/ants/ChangeLog
index a2f159a..a6e2e47 100644
--- a/sci-biology/ants/ChangeLog
+++ b/sci-biology/ants/ChangeLog
@@ -1,3 +1,7 @@
+  25 Nov 2019;  <chymera@gentoo.org> -ants-2.3.1_p20191013.ebuild:
+  sci-biology/ants: migrated version bump to Gentoo Scinece  https://gitweb.gent
+  oo.org/proj/sci.git/commit/?id=402183f38c721910fe038ed4ce04e0a98a37c584
+
   17 Oct 2019;  <chymera@gentoo.org> ants-9999.ebuild:
   sci-biology/ants: patch merged by ANTs upstream
 
diff --git a/sci-biology/ants/ants-2.3.1_p20191013.ebuild b/sci-biology/ants/ants-2.3.1_p20191013.ebuild
deleted file mode 100644
index 5dd2c81..0000000
--- a/sci-biology/ants/ants-2.3.1_p20191013.ebuild
+++ /dev/null
@@ -1,72 +0,0 @@
-# Copyright 1999-2019 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=7
-
-CMAKE_MAKEFILE_GENERATOR="emake"
-
-inherit cmake-utils git-r3 multilib
-
-DESCRIPTION="Advanced Normalitazion Tools for neuroimaging"
-HOMEPAGE="http://stnava.github.io/ANTs/"
-SRC_URI="
-	test? (
-		http://chymera.eu/distfiles/ants_testdata-${PV}.tar.xz
-	)
-"
-EGIT_REPO_URI="https://github.com/stnava/ANTs.git"
-EGIT_COMMIT="f78b2d4a382d3090230641b5ade5da28962dad04"
-
-SLOT="0"
-LICENSE="BSD"
-KEYWORDS="~amd64 ~x86"
-IUSE="test vtk"
-
-DEPEND="
-	vtk? (
-		~sci-libs/itk-5.0.1[vtkglue]
-		sci-libs/vtk
-	)
-	!vtk? (	~sci-libs/itk-5.0.1 )
-"
-RDEPEND="${DEPEND}"
-
-PATCHES=(
-	"${FILESDIR}/${P}-logic.patch"
-	"${FILESDIR}/${P}-paths.patch"
-)
-
-src_unpack() {
-	git-r3_src_unpack
-	if use test; then
-		mkdir -p "${S}/.ExternalData/MD5" || die "Could not create test data directory."
-		tar xvf "${DISTDIR}/ants_testdata-${PV}.tar.xz" -C "${S}/.ExternalData/MD5/" > /dev/null || die "Could not unpack test data."
-	fi
-}
-
-src_configure() {
-	local mycmakeargs=(
-		-DUSE_SYSTEM_ITK=ON
-		-DITK_DIR="/usr/include/ITK-5.0/"
-		-DBUILD_TESTING="$(usex test ON OFF)"
-		-DUSE_VTK=$(usex vtk ON OFF)
-		-DUSE_SYSTEM_VTK=$(usex vtk ON OFF)
-	)
-	use vtk && mycmakeargs+=(
-		-DVTK_DIR="/usr/include/vtk-8.1/"
-	)
-	use test && mycmakeargs+=(
-		-DExternalData_OBJECT_STORES="${S}/.ExternalData/MD5"
-	)
-	cmake-utils_src_configure
-}
-
-src_install() {
-	BUILD_DIR="${WORKDIR}/${P}_build/ANTS-build"
-	cmake-utils_src_install
-	cd "${WORKDIR}/${P}/Scripts" || die "scripts dir not found"
-	dobin *.sh
-	dodir /usr/$(get_libdir)/ants
-	install -t "${D}"/usr/$(get_libdir)/ants * || die
-	doenvd "${FILESDIR}"/99ants
-}