diff --git a/cyrus-sasl.spec b/cyrus-sasl.spec
index 1771766..4f68991 100644
--- a/cyrus-sasl.spec
+++ b/cyrus-sasl.spec
@@ -1,15 +1,15 @@
 %define saslauth_groupid 65439
 %define saslauth_userid  65439
 Name:          cyrus-sasl
-Version:       2.1.27
-Release:       1mamba
+Version:       2.1.28
+Release:       2mamba
 Summary:       SASL Authentication Daemon for simple authentication and security
 Group:         System/Libraries
 Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
-URL:           http://asg.web.cmu.edu/sasl/
-Source0:       ftp://ftp.cyrusimap.org/cyrus-sasl/cyrus-sasl-%{version}.tar.gz
+URL:           https://github.com/cyrusimap/cyrus-sasl
+Source0:       https://github.com/cyrusimap/cyrus-sasl.git/cyrus-sasl-%{version}/cyrus-sasl-%{version}.tar.bz2
 Source1:       saslauthd.service
 Source2:       saslauthd.tmpfiles
 Source3:       saslauthd.sysconfig
@@ -21,21 +21,20 @@ Patch4:        cyrus-sasl-2.1.26-missing-include.patch
 License:       BSD
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: libdb51-devel
+BuildRequires: libaudit-devel
+BuildRequires: libcap-ng-devel
+BuildRequires: libdb53-devel
 BuildRequires: libe2fs-devel
 BuildRequires: libkrb5-devel
-%if "%{stage1}" != "1"
 BuildRequires: libopenldap-devel
-%endif
 BuildRequires: libopenssl-devel
-BuildRequires: pam-devel
+BuildRequires: libpam-devel
 ## AUTOBUILDREQ-END
 Requires:      pam >= 0.77
 %systemd_requires
 Provides:      sasl
-Obsoletes:     sasl
+Obsoletes:     sasl < 2.1.27
 Requires:      libsasl2 = %{version}-%{release}
-BuildRoot:     %{_tmppath}/%{name}-%{version}-root
 
 %description
 SASL is the Simple Authentication and Security Layer, a method for adding authentication support to connection-based protocols.
@@ -46,7 +45,7 @@ If its use is negotiated, a security layer is inserted between the protocol and
 Group:         System/Libraries
 Summary:       Libraries for SASL, the Simple Authentication and Security Layer
 Provides:      libsasl
-Obsoletes:     libsasl
+Obsoletes:     libsasl < 2.1.27
 
 %description -n libsasl2
 SASL is the Simple Authentication and Security Layer, a method for adding authentication support to connection-based protocols.
@@ -59,29 +58,31 @@ Group:         Development/Libraries
 Summary:       Static libraries and headers for %{name}
 Requires:      libsasl2 = %{version}-%{release}
 Provides:      libsasl-devel
-Obsoletes:     libsasl-devel
+Obsoletes:     libsasl-devel < 2.1.27
 
 %description -n libsasl2-devel
 SASL is the Simple Authentication and Security Layer, a method for adding authentication support to connection-based protocols.
 To use SASL, a protocol includes a command for identifying and authenticating a user to a server and for optionally negotiating protection of subsequent protocol interactions.
 If its use is negotiated, a security layer is inserted between the protocol and the connection.
+This package contains static libraries and header files needed for development.
 
-This package contains static libraries and header files need for development.
+%debug_package
 
 %prep
-%setup -q -n cyrus-sasl-%{version}
+%setup -q
 #%patch0 -p1
 #%patch1 -p1
 #%patch2 -p0
 #%patch3 -p0
 #%patch4 -p1
-sed -i "s|db-4.7|db-5.1|" configure
+#sed -i "s|db-4.7|db-5.1|" configure
+./autogen.sh
 
 %build
 # replace the hardcoded occorrences of `/usr/local/{lib,include}'
 # we don't want to see RPATH="/usr/local/lib" in 
 # '/usr/sbin/sasldblistusers2` and '/usr/sbin/saslpasswd2'
-sed -i 's,/usr/local/,/usr/,g' configure
+#sed -i 's,/usr/local/,/usr/,g' configure
 %configure \
    --enable-anon \
    --enable-login \
@@ -96,7 +97,7 @@ sed -i 's,/usr/local/,/usr/,g' configure
    --with-saslauthd=/run/saslauthd \
    --with-plugindir=%{_libdir}/sasl2 \
    --cache-file= \
-   --with-bdb-incdir=%{_includedir}/db51
+   --with-bdb-incdir=%{_includedir}/db53
 
 make
 
@@ -163,6 +164,7 @@ find /etc/rc[0-6].d/ -type l -xtype l -exec rm -f {} \;
 %{_mandir}/man8/pluginviewer.8*
 %{_mandir}/man8/sasldblistusers2.8*
 %{_mandir}/man8/saslpasswd2.8*
+%{_mandir}/man8/testsaslauthd.8*
 
 %files -n libsasl2
 %defattr(-,root,root)
@@ -184,6 +186,12 @@ find /etc/rc[0-6].d/ -type l -xtype l -exec rm -f {} \;
 %doc ChangeLog README
 
 %changelog
+* Sun Apr 24 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.28-2mamba
+- rebuilt with libdb53
+
+* Wed Apr 13 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.28-1mamba
+- update to 2.1.28
+
 * Sun Nov 25 2018 Silvan Calarco <silvan.calarco@mambasoft.it> 2.1.27-1mamba
 - update to 2.1.27