diff --git a/mupdf-1.22.1-source.tar.lz b/mupdf-1.23.0-source.tar.lz
similarity index 77%
rename from mupdf-1.22.1-source.tar.lz
rename to mupdf-1.23.0-source.tar.lz
index dae15d7..a50726c 100644
Binary files a/mupdf-1.22.1-source.tar.lz and b/mupdf-1.23.0-source.tar.lz differ
diff --git a/mupdf.spec b/mupdf.spec
index b5ee489..7330887 100644
--- a/mupdf.spec
+++ b/mupdf.spec
@@ -1,5 +1,5 @@
 Name:          mupdf
-Version:       1.22.1
+Version:       1.23.0
 Release:       1mamba
 Summary:       A lightweight PDF, XPS, and E-book viewer
 Group:         Graphical Desktop/Applications/Publishing
@@ -85,6 +85,9 @@ This package contains libraries and header files for developing applications tha
 
 
 %changelog
+* Wed Aug 23 2023 Automatic Build System <autodist@mambasoft.it> 1.23.0-1mamba
+- automatic version update by autodist
+
 * Fri May 12 2023 Automatic Build System <autodist@mambasoft.it> 1.22.1-1mamba
 - automatic version update by autodist