diff --git a/sci-mathematics/yices2/Manifest b/sci-mathematics/yices2/Manifest
index 0dc9921afefc..405ade1dbadb 100644
--- a/sci-mathematics/yices2/Manifest
+++ b/sci-mathematics/yices2/Manifest
@@ -1,2 +1 @@
-DIST Yices-2.6.4.tar.gz 10186909 BLAKE2B 1c4b6297fd59924e9d99b9e17eb4b42e9bfbc24dcd56631beb9b72103c91578eb72b90cb9e228a5e9d489efc520a2e1d41185e9c3f4a8c43fc93f8dabba7414d SHA512 d8102c41fda0e200fd1336ae317b516d2797d10c187b8f7aecf0c9b08b4b487b90bef8c358099b2da51c0367326939f9610fd4e6d5a41a392cf1114bd04b8763
 DIST yices2-2.6.5.gh.tar.gz 10387735 BLAKE2B de8c198efa108ee8ce7118409c59ad7b0260315928da1ae863ac7dd2389b469619b56cab45461d886123e6fb92775545f1603a670716d59e25573e0398e02cce SHA512 59015bfa526871d36999485342e6f35e8849495923c824a58168fd6fb058ead8d10914e832989cce177ac9149eb0354779f8febbcb9f9b943112d54a8ccbd3db
diff --git a/sci-mathematics/yices2/yices2-2.6.4-r1.ebuild b/sci-mathematics/yices2/yices2-2.6.4-r1.ebuild
deleted file mode 100644
index 5d2d356eb014..000000000000
--- a/sci-mathematics/yices2/yices2-2.6.4-r1.ebuild
+++ /dev/null
@@ -1,49 +0,0 @@
-# Copyright 1999-2023 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=8
-
-inherit autotools
-
-DESCRIPTION="SMT Solver supporting SMT-LIB and Yices specification language"
-HOMEPAGE="https://github.com/SRI-CSL/yices2/"
-SRC_URI="https://github.com/SRI-CSL/${PN}/archive/Yices-${PV}.tar.gz"
-S="${WORKDIR}"/${PN}-Yices-${PV}
-
-LICENSE="GPL-3+"
-SLOT="0/${PV}"
-KEYWORDS="~amd64 ~x86"
-IUSE="+mcsat"
-
-RDEPEND="
-	dev-libs/gmp:=
-	mcsat? (
-		sci-mathematics/libpoly:=
-		sci-mathematics/cudd:=
-	)
-"
-DEPEND="${RDEPEND}"
-
-DOCS=( FAQ.md README.md )
-
-src_prepare() {
-	default
-
-	eautoreconf
-}
-
-src_configure() {
-	econf $(use_enable mcsat)
-}
-
-src_compile() {
-	emake STRIP=echo
-}
-
-src_install() {
-	default
-
-	doman doc/*.1
-
-	rm "${ED}"/usr/$(get_libdir)/libyices.a || die
-}