diff --git a/setup.py b/setup.py
index 0c8be0b3b74..587d4525c3c 100755
--- a/setup.py
+++ b/setup.py
@@ -19,8 +19,8 @@
 
 NAME = 'Orange3'
 
-VERSION = '3.8.0'
-ISRELEASED = True
+VERSION = '3.9.0'
+ISRELEASED = False
 # full version identifier including a git revision identifier for development
 # build/releases (this is filled/updated in `write_version_py`)
 FULLVERSION = VERSION