diff --git a/sci-libs/libsemigroups/Manifest b/sci-libs/libsemigroups/Manifest
index d7e63bf38751e..1390a2c5d18cb 100644
--- a/sci-libs/libsemigroups/Manifest
+++ b/sci-libs/libsemigroups/Manifest
@@ -1,2 +1 @@
-DIST libsemigroups-2.7.4.tar.gz 8682905 BLAKE2B afe04ad3de2e7fde508c16aebad5e435f66332aff5a1b005774065a0f91166942c237ff0beb6c6878567a9c5446ea546534e1d4dc27b4cf33eccce4d93ea9378 SHA512 c1af30bef6ad3b2a6d49c0eff5d604b72f7b2dabce482382640a8eca0bdfc6a1be7474c21f5b75214496191590bee4f379ba54159cc2b6d09ae90bb3444f6d23
 DIST libsemigroups-3.5.5.tar.gz 13821323 BLAKE2B 1184d2239f900ea1e90341f66be0cbd27117f9c02c471a1633dae98c8406aafd0d297d76f80e6b5e690173930124350fe989503e32d6aa8cb86a89c00e4aac88 SHA512 946c054508311d16dd94c58c49739bd18fea3a5f289dcdf273ef676125eabc6d14f5c4de40e619e5ab155fa62ed385090c9f26aee2377cf03e03fadb41df6e95
diff --git a/sci-libs/libsemigroups/libsemigroups-2.7.4.ebuild b/sci-libs/libsemigroups/libsemigroups-2.7.4.ebuild
deleted file mode 100644
index 729023d95c4a1..0000000000000
--- a/sci-libs/libsemigroups/libsemigroups-2.7.4.ebuild
+++ /dev/null
@@ -1,27 +0,0 @@
-# Copyright 2019-2025 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-DESCRIPTION="C++ library for semigroups and monoids"
-HOMEPAGE="https://github.com/libsemigroups/libsemigroups"
-SRC_URI="https://github.com/${PN}/${PN}/releases/download/v${PV}/${P}.tar.gz"
-
-# Source headers have "or any later version"
-LICENSE="GPL-3+"
-SLOT="0/2"
-KEYWORDS="~amd64 ~riscv ~x86"
-IUSE="cpu_flags_x86_popcnt"
-
-src_configure() {
-	econf \
-		$(use_enable cpu_flags_x86_popcnt popcnt) \
-		--disable-eigen \
-		--disable-hpcombi \
-		--disable-fmt
-}
-
-src_install() {
-	default
-	find "${ED}" -type f -name '*.la' -delete || die
-}