diff --git a/parsnp b/parsnp
index c4050ad..f37fc05 100755
--- a/parsnp
+++ b/parsnp
@@ -14,7 +14,7 @@ import signal
 import inspect
 from multiprocessing import *
 
-__version__ = "1.5.3"
+__version__ = "1.5.4"
 reroot_tree = True #use --midpoint-reroot
 
 try: