diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56ebefc0406a952844fb2a2594754094baefa5e9..0637ced526b7641dee829e4519ae1c4ab509f435 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,7 +110,7 @@ set(main_project_name ${_OTBModuleMacros_DEFAULT_LABEL})
 #-----------------------------------------------------------------------------
 # OTB version number.
 set(OTB_VERSION_MAJOR "6")
-set(OTB_VERSION_MINOR "3")
+set(OTB_VERSION_MINOR "4")
 set(OTB_VERSION_PATCH "0")
 set(OTB_VERSION_STRING "${OTB_VERSION_MAJOR}.${OTB_VERSION_MINOR}.${OTB_VERSION_PATCH}")