diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9e945e5..6598d49 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.14)
 
-project(libXISF VERSION 0.2.12 LANGUAGES CXX C
+project(libXISF VERSION 0.2.13 LANGUAGES CXX C
     HOMEPAGE_URL https://gitea.nouspiro.space/nou/libXISF
     DESCRIPTION "LibXISF is C++ library that can read and write XISF files produced by PixInsight.")
 
diff --git a/zlib/contrib/dotzlib/DotZLib.chm b/zlib/contrib/dotzlib/DotZLib.chm
deleted file mode 100644
index f214a44..0000000
Binary files a/zlib/contrib/dotzlib/DotZLib.chm and /dev/null differ