diff --git a/zlib.spec b/zlib.spec
index 561af27..0e70262 100644
--- a/zlib.spec
+++ b/zlib.spec
@@ -2,13 +2,13 @@
 
 Name:    zlib
 Version: 1.2.11
-Release: 23%{?dist}
-Summary: The compression and decompression library
+Release: 24%{?dist}
+Summary: Compression and decompression library
 # /contrib/dotzlib/ have Boost license
 License: zlib and Boost
-URL: http://www.zlib.net/
+URL: https://www.zlib.net/
 
-Source: http://www.zlib.net/zlib-%{version}.tar.xz
+Source: https://www.zlib.net/zlib-%{version}.tar.xz
 # https://github.com/madler/zlib/pull/210
 Patch0: zlib-1.2.5-minizip-fixuncrypt.patch
 # resolves: #805113
@@ -35,6 +35,7 @@ Patch13: zlib-1.2.11-IBM-DFLTCC-compression-level-switching-issues.patch
 # fixed inflateSyncPoint() bad return value on z15
 Patch14: zlib-1.2.11-inflateSyncPoint-return-value-fix.patch
 
+BuildRequires: make
 BuildRequires: automake, autoconf, libtool
 
 %global __provides_exclude_from ^%{_libdir}/pkgconfig/minizip\\.pc$
@@ -191,6 +192,9 @@ find $RPM_BUILD_ROOT -name '*.la' -delete
 
 
 %changelog
+* Thu Jan 28 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.2.11-24
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Wed Nov 18 2020 Ondrej Dubaj <odubaj@redhat.com> - 1.2.11-23
 - backport IBM Z updates to fedora