diff --git a/setup.py b/setup.py
index 074edd9..6540f5e 100644
--- a/setup.py
+++ b/setup.py
@@ -7,7 +7,7 @@
                 "scipy", "numpy", "pyyaml"]
 TEST_DEPENDENCIES = ['pytest']
 
-VERSION = "1.5"
+VERSION = "2.3"
 URL = "https://github.com/KVSlab/turtleFSI.git"
 
 setuptools.setup(