diff --git a/mdgo/__init__.py b/mdgo/__init__.py
index 3f81e3bd..94791f81 100644
--- a/mdgo/__init__.py
+++ b/mdgo/__init__.py
@@ -5,3 +5,8 @@
 """
 This package contains core modules and classes molecular dynamics simulation setup and analysis.
 """
+__author__ = "Mdgo Development Team"
+__email__ = "tingzheng_hou@berkeley.edu"
+__maintainer__ = "Tingzheng Hou"
+__maintainer_email__ = "tingzheng_hou@berkeley.edu"
+__version__ = "0.2.2"
diff --git a/setup.py b/setup.py
index 908abbe5..b09ecae0 100644
--- a/setup.py
+++ b/setup.py
@@ -32,7 +32,7 @@
 if __name__ == "__main__":
     setup(
         name="mdgo",
-        version="0.2.1",
+        version="0.2.2",
         description="A codebase for MD simulation setup and results analysis.",
         long_description=readme,
         long_description_content_type="text/markdown",