diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c027374f..2a20b8dba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -97,7 +97,7 @@ if (NOT EXISTS ${dfhack_SOURCE_DIR}/library/xml/codegen.pl OR NOT EXISTS ${dfhac
 endif()
 
 # set up versioning.
-set(DF_VERSION "0.42.03")
+set(DF_VERSION "0.42.04")
 SET(DFHACK_RELEASE "alpha1")
 SET(DFHACK_PRERELEASE TRUE)