diff --git a/dovecot.spec b/dovecot.spec
index 194733a..c20f70b 100644
--- a/dovecot.spec
+++ b/dovecot.spec
@@ -6,7 +6,7 @@
 
 Name:          dovecot
 Version:       2.3.16
-Release:       1mamba
+Release:       2mamba
 Summary:       An IMAP and POP3 server written with security primarily in mind
 Group:         System/Servers
 Vendor:        openmamba
@@ -41,6 +41,7 @@ BuildRequires: libzstd-devel
 ## AUTOBUILDREQ-END
 BuildRequires: libsasl-devel >= 2.1.21
 BuildRequires: libgssapi-devel >= 0.10
+BuildRequires: libopenssl-devel >= 3.0.0
 Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
 
 %description
@@ -214,6 +215,9 @@ fi
 %doc ChangeLog NEWS README TODO
 
 %changelog
+* Sat Sep 25 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.16-2mamba
+- rebuilt with openssl 3.0.0
+
 * Fri Aug 06 2021 Automatic Build System <autodist@mambasoft.it> 2.3.16-1mamba
 - automatic version update by autodist