diff --git a/sci-biology/uchime/files/CMakeLists.patch b/sci-biology/uchime/files/CMakeLists.patch
index c33af8c7e827c..36b2b39ca5c64 100644
--- a/sci-biology/uchime/files/CMakeLists.patch
+++ b/sci-biology/uchime/files/CMakeLists.patch
@@ -1,7 +1,7 @@
 --- /dev/null
 +++ b/CMakeLists.txt
 @@ -0,0 +1,18 @@
-+cmake_minimum_required(VERSION 2.8.12)
++cmake_minimum_required(VERSION 3.31)
 +project(UCHIME LANGUAGES CXX)
 +
 +include(GNUInstallDirs)
diff --git a/sci-biology/uchime/uchime-4.2.40-r1.ebuild b/sci-biology/uchime/uchime-4.2.40-r1.ebuild
index 9742ee2575fc1..348d8106d2708 100644
--- a/sci-biology/uchime/uchime-4.2.40-r1.ebuild
+++ b/sci-biology/uchime/uchime-4.2.40-r1.ebuild
@@ -1,11 +1,10 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-inherit cmake
-
 MY_P="${PN}${PV}_src"
+inherit cmake
 
 DESCRIPTION="Fast, accurate chimera detection"
 HOMEPAGE="https://www.drive5.com/usearch/manual/uchime_algo.html"
@@ -16,4 +15,6 @@ LICENSE="public-domain"
 SLOT="0"
 KEYWORDS="amd64 ~x86 ~amd64-linux ~x86-linux"
 
+BDEPEND=">=dev-build/cmake-3.31"
+
 PATCHES=( "${FILESDIR}"/CMakeLists.patch )