diff --git a/CMakeLists.txt b/CMakeLists.txt
index 795858239b329c656961b36d32a1b9e82a028922..e4f7b31e40acbca17c92e32c65b50859e882e272 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -101,7 +101,7 @@ add_custom_target(tags COMMAND ctags -R -f tags
 #
 set (CPACK_PACKAGE_VERSION_MAJOR "1")
 set (CPACK_PACKAGE_VERSION_MINOR "6")
-set (CPACK_PACKAGE_VERSION_PATCH "3")
+set (CPACK_PACKAGE_VERSION_PATCH "4")
 
 set (PACKAGE_VERSION "")