diff --git a/setup.py b/setup.py
index 009678b..d7e3cf1 100644
--- a/setup.py
+++ b/setup.py
@@ -3,6 +3,7 @@
 import os, os.path, struct, re, platform
 from setuptools.command.install import install
 import numpy
+import tomotopy.version
 
 here = os.path.abspath(os.path.dirname(__file__))
 
@@ -53,7 +54,7 @@
 setup(
     name='tomotopy',
 
-    version='0.8.0',
+    version=tomotopy.version.__version__,
 
     description='Tomoto, The Topic Modeling Tool for Python',
     long_description=long_description,
diff --git a/tomotopy/__init__.py b/tomotopy/__init__.py
index 901d719..694d7dc 100644
--- a/tomotopy/__init__.py
+++ b/tomotopy/__init__.py
@@ -4,6 +4,7 @@
 
 .. include:: ./documentation.rst
 """
+from tomotopy.version import __version__
 import tomotopy.utils as utils
 from enum import IntEnum
 
diff --git a/tomotopy/version.py b/tomotopy/version.py
new file mode 100644
index 0000000..ccf9e62
--- /dev/null
+++ b/tomotopy/version.py
@@ -0,0 +1 @@
+__version__ = '0.8.0'
\ No newline at end of file