diff --git a/libqca.spec b/libqca.spec
index 13d511b..02ad117 100644
--- a/libqca.spec
+++ b/libqca.spec
@@ -2,7 +2,7 @@
 
 Name:          libqca
 Version:       2.3.4
-Release:       1mamba
+Release:       2mamba
 Summary:       Qt Cryptographic Architecture (QCA)
 Group:         System/Libraries
 Vendor:        openmamba
@@ -29,6 +29,9 @@ BuildRequires: libsasl2-devel
 BuildRequires: libstdc++6-devel
 BuildRequires: qt5-qtbase-devel
 ## AUTOBUILDREQ-END
+%ifnarch arm
+BuildRequires: libbotan-devel >= 2.19.0
+%endif
 
 %description
 Taking a hint from the similarly-named Java Cryptography Architecture, QCA aims to provide a straightforward and cross-platform crypto API, using Qt datatypes and conventions.
@@ -101,6 +104,9 @@ This package contains static libraries and header files needed for development.
 #%doc README TODO
 
 %changelog
+* Thu Feb 03 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.4-2mamba
+- rebuilt with libbotan 2.19.0
+
 * Tue Dec 07 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 2.3.4-1mamba
 - update to 2.3.4