diff --git a/custominstall.py b/custominstall.py
index ef1bd94..d4d3ede 100644
--- a/custominstall.py
+++ b/custominstall.py
@@ -45,7 +45,7 @@ if is_windows:
 else:
     from os import statvfs
 
-CI_VERSION = '2.1b3'
+CI_VERSION = '2.1b4.dev1'
 
 # used to run the save3ds_fuse binary next to the script
 frozen = getattr(sys, 'frozen', False)