diff --git a/acpica-unix-20221020.tar_0.gz b/acpica-unix-20221020.tar_0.gz
new file mode 100644
index 0000000..dafbdb5
Binary files /dev/null and b/acpica-unix-20221020.tar_0.gz differ
diff --git a/acpica.spec b/acpica.spec
index e2b867b..f85d06a 100644
--- a/acpica.spec
+++ b/acpica.spec
@@ -1,5 +1,5 @@
 Name:          acpica
-Version:       20220331
+Version:       20221020
 Release:       1mamba
 Summary:       Advanced Configuration & Power Interface Component Architecture
 Group:         System/Kernel and Hardware
@@ -7,7 +7,7 @@ Vendor:        openmamba
 Distribution:  openmamba
 Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
 URL:           https://www.intel.com/content/www/us/en/standards/processor-vendor-specific-acpi-specification.html
-Source:        https://acpica.org/sites/acpica/files/acpica-unix-%{version}.tar.gz
+Source:        https://acpica.org/sites/acpica/files/acpica-unix-%{version}.tar_0.gz
 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
@@ -25,6 +25,8 @@ ExclusiveArch: %{ix86} x86_64
 Advanced Configuration & Power Interface Component Architecture (ACPI CA) provides a reference implementation of software components that enable OS support for interfaces defined in the ACPI 1.0b specification.
 This includes: AML interpreter and debugger, Namespace Management, ACPI hardware support, and basic OSPM, including a device power management framework.
 
+%debug_package
+
 %prep
 %setup -q -n %{name}-unix-%{version}
 cd source
@@ -35,11 +37,13 @@ cp %{S:1} LICENSE
 cp %{S:2} %{S:3} .
 
 %build
+export CFLAGS="%{optflags} -Wno-dangling-pointer -Wno-format-overflow"
+
 %make
 
 %install
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
-%makeinstall
+%makeinstall INSTALLFLAGS=""
 
 %clean
 [ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
@@ -51,6 +55,9 @@ cp %{S:2} %{S:3} .
 %doc source/LICENSE
 
 %changelog
+* Thu Dec 29 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 20221020-1mamba
+- update to 20221020
+
 * Fri Apr 01 2022 Automatic Build System <autodist@mambasoft.it> 20220331-1mamba
 - automatic version update by autodist