diff --git a/lisa/__init__.py b/lisa/__init__.py
index 117afb78..6b65f9a5 100644
--- a/lisa/__init__.py
+++ b/lisa/__init__.py
@@ -1,7 +1,7 @@
 __all__ = ['organ_segmentation']
 #, 'qmisc', 'misc', 'experiments',
            #'support_structure_segmentation']
-__version__ = "1.8.37"
+__version__ = "1.9.0"
 
 import organ_segmentation
 from main import lisa_main
diff --git a/lisa/organ_segmentation.py b/lisa/organ_segmentation.py
index b613114e..d0e19b87 100644
--- a/lisa/organ_segmentation.py
+++ b/lisa/organ_segmentation.py
@@ -229,7 +229,7 @@ def __init__(
         self.lisa_operator_identifier = lisa_operator_identifier
         # self.version = qmisc.getVersionString()
         # if self.version is None:
-        self.version = "1.8.37"
+        self.version = "1.9.0"
         self.viewermax = viewermax
         self.viewermin = viewermin
         self.volume_unit = volume_unit
diff --git a/meta.yaml b/meta.yaml
index f4ff6cf1..9a4eeec2 100644
--- a/meta.yaml
+++ b/meta.yaml
@@ -1,9 +1,9 @@
 package:
   name: lisa
-  version: "1.8.37"
+  version: "1.9.0"
 
 source:
-  git_rev: 1.8.37
+  git_rev: 1.9.0
   git_url: .
   # git_url: https://github.com/mjirik/quantan.git
 
diff --git a/setup.cfg b/setup.cfg
index 5b039139..21ce78a1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.8.37
+current_version = 1.9.0
 files = setup.py meta.yaml lisa/organ_segmentation.py lisa/__init__.py
 commit = True
 tag = True
diff --git a/setup.py b/setup.py
index 1f2b6337..e3e37b32 100644
--- a/setup.py
+++ b/setup.py
@@ -12,7 +12,7 @@
     # Versions should comply with PEP440.  For a discussion on single-sourcing
     # the version across setup.py and the project code, see
     # http://packaging.python.org/en/latest/tutorial.html#version
-    version='1.8.37',
+    version='1.9.0',
     url='https://github.com/mjirik/lisa',
     author='Miroslav Jirik',
     author_email='miroslav.jirik@gmail.com',