diff --git a/haproxy.spec b/haproxy.spec
index 9c431ea..d9bb791 100644
--- a/haproxy.spec
+++ b/haproxy.spec
@@ -8,7 +8,7 @@
 
 Name:           haproxy
 Version:        2.4.0
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        HAProxy reverse proxy for high availability environments
 
 License:        GPLv2+
@@ -24,7 +24,6 @@ Source5:        halog.1
 BuildRequires:  gcc
 BuildRequires:  lua-devel
 BuildRequires:  pcre2-devel
-BuildRequires:  zlib-devel
 BuildRequires:  openssl-devel
 BuildRequires:  systemd-devel
 BuildRequires:  systemd
@@ -56,7 +55,7 @@ regparm_opts=
 regparm_opts="USE_REGPARM=1"
 %endif
 
-%{__make} %{?_smp_mflags} CPU="generic" TARGET="linux-glibc" USE_OPENSSL=1 USE_PCRE2=1 USE_ZLIB=1 USE_LUA=1 USE_CRYPT_H=1 USE_SYSTEMD=1 USE_LINUX_TPROXY=1 USE_GETADDRINFO=1 USE_PROMEX=1 ${regparm_opts} ADDINC="%{optflags}" ADDLIB="%{__global_ldflags}"
+%{__make} %{?_smp_mflags} CPU="generic" TARGET="linux-glibc" USE_OPENSSL=1 USE_PCRE2=1 USE_SLZ=1 USE_LUA=1 USE_CRYPT_H=1 USE_SYSTEMD=1 USE_LINUX_TPROXY=1 USE_GETADDRINFO=1 USE_PROMEX=1 ${regparm_opts} ADDINC="%{optflags}" ADDLIB="%{__global_ldflags}"
 
 pushd contrib/halog
 %{__make} ${halog} OPTIMIZE="%{optflags} %{build_ldflags}"
@@ -133,6 +132,9 @@ exit 0
 %{_mandir}/man1/*
 
 %changelog
+* Mon May 17 2021 Ryan O'Hara <rohara@redhat.com> - 2.4.0-3
+- Use SLZ instead of ZLIB
+
 * Mon May 17 2021 Ryan O'Hara <rohara@redhat.com> - 2.4.0-2
 - Add USE_PROMEX=1 for prometheus exporter