diff --git a/setup.py b/setup.py
index bd55b09d..90c95043 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 import numpy
 
 
-VERSION = "3.8.0"
+VERSION = "3.9.0"
 
 NAME = "ms2pip"
 LICENSE = "apache-2.0"