diff --git a/kdegraphics-thumbnailers.spec b/kdegraphics-thumbnailers.spec
index fe46713..1b84c65 100644
--- a/kdegraphics-thumbnailers.spec
+++ b/kdegraphics-thumbnailers.spec
@@ -1,5 +1,5 @@
 Name:          kdegraphics-thumbnailers
-Version:       21.04.2
+Version:       21.04.3
 Release:       1mamba
 Summary:       Thumbnailers for various graphic types
 Group:         Graphical Desktop/Applications/Graphics
@@ -24,6 +24,7 @@ BuildRequires: libkservice-devel
 BuildRequires: libkwidgetsaddons-devel
 BuildRequires: libkwindowsystem-devel
 BuildRequires: libqt5-devel
+BuildRequires: libsolid-devel
 BuildRequires: libstdc++6-devel
 ## AUTOBUILDREQ-END
 BuildRequires: cmake
@@ -68,6 +69,9 @@ exit 0
 %doc COPYING COPYING.LIB
 
 %changelog
+* Fri Jul 09 2021 Automatic Build System <autodist@mambasoft.it> 21.04.3-1mamba
+- automatic version update by autodist
+
 * Thu Jun 10 2021 Automatic Build System <autodist@mambasoft.it> 21.04.2-1mamba
 - automatic version update by autodist