diff --git a/desktop-base-openmamba.spec b/desktop-base-openmamba.spec
index 48d9db2..a7fc56d 100644
--- a/desktop-base-openmamba.spec
+++ b/desktop-base-openmamba.spec
@@ -18,7 +18,7 @@
 
 Name:          desktop-base-openmamba
 Version:       2022.02.08
-Release:       1mamba
+Release:       2mamba
 Summary:       openmamba default desktop theme and menu entries
 Group:         System/Tools
 Vendor:        openmamba
@@ -89,6 +89,8 @@ Requires:      bash-completion
 #Requires:      /usr/bin/b43-fwcutter
 %ifarch %{ix86} x86_64
 Requires:      grub-theme-openmamba
+Requires:      intel-ucode
+Requires:      amd-ucode
 %endif
 %ifnarch arm
 Requires:      smartmontools
@@ -240,6 +242,9 @@ _EOF
 %{_datadir}/openmamba/desktop/desktop-*.tar.bz2
 
 %changelog
+* Sun Jun 05 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2022.02.08-2mamba
+- x86*: require microcode firmware update packages intel-ucode and amd-ucode
+
 * Tue Feb 08 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 2022.02.08-1mamba
 - update to 2022.02.08