--- fs2_open/version_override.cmake
+++ fs2_open/version_override.cmake
@@ -1,5 +1,5 @@
 set(FSO_VERSION_MAJOR 21)
 set(FSO_VERSION_MINOR 4)
-set(FSO_VERSION_BUILD 0)
+set(FSO_VERSION_BUILD 1)
 set(FSO_VERSION_REVISION 0)
 set(FSO_VERSION_REVISION_STR )