diff --git a/umbrello.spec b/umbrello.spec
index 51e5f99..cc9ef16 100644
--- a/umbrello.spec
+++ b/umbrello.spec
@@ -1,5 +1,5 @@
 Name:          umbrello
-Version:       20.12.3
+Version:       21.04.0
 Release:       1mamba
 Summary:       UML modelling tool and code generator
 Group:         Graphical Desktop/Applications/Development
@@ -11,7 +11,6 @@ Source:        http://download.kde.org/stable/release-service/%{version}/src/umb
 License:       GPL
 ## AUTOBUILDREQ-BEGIN
 BuildRequires: glibc-devel
-BuildRequires: ldconfig
 BuildRequires: libQt5WebKit-devel
 BuildRequires: libgcc
 BuildRequires: libkarchive-devel
@@ -43,6 +42,7 @@ BuildRequires: libqt5-devel
 BuildRequires: libsolid-devel
 BuildRequires: libsonnet-devel
 BuildRequires: libstdc++6-devel
+BuildRequires: libsyntax-highlighting-devel
 BuildRequires: libxml2-devel
 BuildRequires: libxslt-devel
 ## AUTOBUILDREQ-END
@@ -111,6 +111,9 @@ exit 0
 %doc AUTHORS COPYING COPYING.DOC THANKS
 
 %changelog
+* Fri Apr 23 2021 Automatic Build System <autodist@mambasoft.it> 21.04.0-1mamba
+- automatic version update by autodist
+
 * Sat Mar 06 2021 Automatic Build System <autodist@mambasoft.it> 20.12.3-1mamba
 - automatic version update by autodist