diff --git a/openpyscad/__init__.py b/openpyscad/__init__.py
index 08386e0..168a4f5 100644
--- a/openpyscad/__init__.py
+++ b/openpyscad/__init__.py
@@ -10,7 +10,7 @@
 from .custom2dshapes import Custom2dShapes
 
 __name__ = "OpenPySCAD"
-__version__ = "0.2.0"
+__version__ = "0.3.0"
 __author__ = "Takuro Wada"
 __email__ = "taxpon@gmail.com"
 __url__ = "https://github.com/taxpon/openpyscad"
diff --git a/setup.py b/setup.py
index eb040f6..55c32cc 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,8 @@
     license=openpyscad.__license__,
     classifiers=[
         "License :: OSI Approved :: MIT License",
-        "Programming Language :: Python",
+        "Programming Language :: Python :: 2",
+        "Programming Language :: Python :: 3",
         "Topic :: Software Development :: Code Generators"
     ]
 )