diff --git a/sys-cluster/drbd-utils/drbd-utils-9.25.0-r1.ebuild b/sys-cluster/drbd-utils/drbd-utils-9.25.0-r1.ebuild
index 1dde213b413e0..192389b3f566c 100644
--- a/sys-cluster/drbd-utils/drbd-utils-9.25.0-r1.ebuild
+++ b/sys-cluster/drbd-utils/drbd-utils-9.25.0-r1.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -20,7 +20,7 @@ DEPEND="
 	udev? ( virtual/udev )
 "
 RDEPEND="${DEPEND}"
-BDEPEND="sys-devel/flex"
+BDEPEND="app-alternatives/lex"
 
 PATCHES=(
 	#"${FILESDIR}"/${PN}-9.15.1-run-lock.patch
diff --git a/sys-cluster/drbd-utils/drbd-utils-9.25.0.ebuild b/sys-cluster/drbd-utils/drbd-utils-9.25.0.ebuild
index 5194d27e497cd..180215a36f749 100644
--- a/sys-cluster/drbd-utils/drbd-utils-9.25.0.ebuild
+++ b/sys-cluster/drbd-utils/drbd-utils-9.25.0.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -20,7 +20,7 @@ DEPEND="
 	udev? ( virtual/udev )
 "
 RDEPEND="${DEPEND}"
-BDEPEND="sys-devel/flex"
+BDEPEND="app-alternatives/lex"
 
 PATCHES=(
 	#"${FILESDIR}"/${PN}-9.15.1-run-lock.patch
diff --git a/sys-cluster/drbd-utils/drbd-utils-9.27.0.ebuild b/sys-cluster/drbd-utils/drbd-utils-9.27.0.ebuild
index 3d8b35c868a08..8e995d72178a2 100644
--- a/sys-cluster/drbd-utils/drbd-utils-9.27.0.ebuild
+++ b/sys-cluster/drbd-utils/drbd-utils-9.27.0.ebuild
@@ -21,7 +21,7 @@ DEPEND="
 	udev? ( virtual/udev )
 "
 RDEPEND="${DEPEND}"
-BDEPEND="sys-devel/flex"
+BDEPEND="app-alternatives/lex"
 
 PATCHES=(
 	"${FILESDIR}"/${PN}-9.23.1-respect-flags.patch