diff --git a/acpica.spec b/acpica.spec
index adba6ce..c8ec823 100644
--- a/acpica.spec
+++ b/acpica.spec
@@ -1,5 +1,8 @@
+%define gv1 %{lua:print(string.sub(rpm.expand("%{version}"), 5, 6))}
+%define gv2 %{lua:print(string.sub(rpm.expand("%{version}"), 7, 8))}
+%define gv3 %{lua:print(string.sub(rpm.expand("%{version}"), 3, 4))}
 Name:          acpica
-Version:       20240322
+Version:       20240927
 Release:       1mamba
 Summary:       Advanced Configuration & Power Interface Component Architecture
 Group:         System/Kernel and Hardware
@@ -7,7 +10,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://www.intel.com/content/www/us/en/developer/topic-technology/open/acpica/overview.html
-Source:        https://github.com/acpica/acpica.git/G%{version}/acpica-%{version}.tar.bz2
+Source:        https://github.com/acpica/acpica.git/R%{gv1}_%{gv2}_%{gv3}/acpica-%{version}.tar.bz2
 Source1:       %{name}-license
 Source2:       http://www.intel.com/technology/iapc/acpi/downloads/AslCompiler.pdf
 Source3:       http://www.intel.com/technology/iapc/acpi/downloads/ACPICA-ProgRef.pdf
@@ -54,6 +57,9 @@ export CFLAGS="%{optflags} -Wno-dangling-pointer -Wno-format-overflow"
 %doc source/LICENSE
 
 %changelog
+* Fri Nov 01 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 20240927-1mamba
+- update to 20240927
+
 * Wed Apr 24 2024 Silvan Calarco <silvan.calarco@mambasoft.it> 20240322-1mamba
 - update to 20240322