diff --git a/acpica-unix-20221020.tar_0.gz b/acpica-unix-20221020.tar_0.gz
deleted file mode 100644
index dafbdb5..0000000
Binary files a/acpica-unix-20221020.tar_0.gz and /dev/null differ
diff --git a/acpica.spec b/acpica.spec
index f85d06a..5d18c3a 100644
--- a/acpica.spec
+++ b/acpica.spec
@@ -1,13 +1,14 @@
 Name:          acpica
-Version:       20221020
+Version:       20230628
 Release:       1mamba
 Summary:       Advanced Configuration & Power Interface Component Architecture
 Group:         System/Kernel and Hardware
 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_0.gz
+URL:           https://www.intel.com/content/www/us/en/developer/topic-technology/open/acpica/overview.html
+# NOTE: manually downloaded from website
+Source:        https://acpica.org/sites/acpica/files/acpica-unix-%{version}.tar.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
@@ -31,7 +32,7 @@ This includes: AML interpreter and debugger, Namespace Management, ACPI hardware
 %setup -q -n %{name}-unix-%{version}
 cd source
 #%patch0 -p1
-%patch1 -p1
+%patch 1 -p1
 
 cp %{S:1} LICENSE
 cp %{S:2} %{S:3} .
@@ -55,6 +56,9 @@ export CFLAGS="%{optflags} -Wno-dangling-pointer -Wno-format-overflow"
 %doc source/LICENSE
 
 %changelog
+* Wed Aug 16 2023 Silvan Calarco <silvan.calarco@mambasoft.it> 20230628-1mamba
+- update to 20230628
+
 * Thu Dec 29 2022 Silvan Calarco <silvan.calarco@mambasoft.it> 20221020-1mamba
 - update to 20221020