diff --git a/perl-core/IO-Zlib/IO-Zlib-1.100.0.ebuild b/perl-core/IO-Zlib/IO-Zlib-1.100.0.ebuild
deleted file mode 100644
index 64aadb605fd98..0000000000000
--- a/perl-core/IO-Zlib/IO-Zlib-1.100.0.ebuild
+++ /dev/null
@@ -1,19 +0,0 @@
-# Copyright 1999-2021 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-EAPI=5
-
-MODULE_AUTHOR=TOMHUGHES
-MODULE_VERSION=1.10
-inherit perl-module
-
-DESCRIPTION="IO:: style interface to Compress::Zlib"
-
-SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~m68k ~mips ppc ppc64 ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
-IUSE=""
-
-RDEPEND="virtual/perl-IO-Compress"
-DEPEND="${RDEPEND}"
-
-SRC_TEST="do"
diff --git a/perl-core/IO-Zlib/Manifest b/perl-core/IO-Zlib/Manifest
deleted file mode 100644
index a449b50daca65..0000000000000
--- a/perl-core/IO-Zlib/Manifest
+++ /dev/null
@@ -1 +0,0 @@
-DIST IO-Zlib-1.10.tar.gz 10144 BLAKE2B a77363d01ee1ff582b756f576d4cd593070e24a48d09020a24e18e081177b6aee659d8cc15defb55e65a0a11d47715fb938fd29282af7c9e726c683d4da76411 SHA512 e40fd2e24bc6fc15a39774e94bea8869db503b9c8d2af14389e7d8e29a623a0f0d46939fa2490d743e5def074595fdbcbd9fc072a6351fe5636693476b017dd9
diff --git a/perl-core/IO-Zlib/metadata.xml b/perl-core/IO-Zlib/metadata.xml
deleted file mode 100644
index 088899f3bf1ba..0000000000000
--- a/perl-core/IO-Zlib/metadata.xml
+++ /dev/null
@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
-<pkgmetadata>
-  <maintainer type="project">
-    <email>perl@gentoo.org</email>
-    <name>Gentoo Perl Project</name>
-  </maintainer>
-  <upstream>
-    <remote-id type="cpan">IO-Zlib</remote-id>
-    <remote-id type="cpan-module">IO::Zlib</remote-id>
-  </upstream>
-</pkgmetadata>
diff --git a/profiles/package.mask b/profiles/package.mask
index 9d9bd031612db..2609fcca21f11 100644
--- a/profiles/package.mask
+++ b/profiles/package.mask
@@ -240,10 +240,6 @@ net-fs/docker-volume-netshare
 dev-java/slf4j-log4j12
 dev-java/jibx
 
-# Andreas K. Hüttel <dilfridge@gentoo.org> (2021-12-13)
-# Outdated, all versions in core Perl are newer. Removal in 30 days.
-perl-core/IO-Zlib
-
 # Volkmar W. Pogatzki <gentoo@pogatzki.net> (2021-12-12)
 # log4j-2.15.0 depends on masked >=virtual/{jdk,jre}-11
 >=dev-java/log4j-api-java9-2.15.0