diff --git a/python/pyproject.toml b/python/pyproject.toml
index 634fc5d4..ce26fcd2 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -4,12 +4,12 @@ build-backend = "maturin"
 
 [project]
 name = "ommx"
+
+version = "0.3.0"
 description = "Open Mathematical prograMming eXchange (OMMX)"
-authors = [
-    { name="Jij Inc.", email="info@j-ij.com" },
-]
-# readme = "README.md" # TODO: Resolve an error when pip install
-requires-python = ">=3.8"
+authors = [{ name="Jij Inc.", email="info@j-ij.com" }]
+readme = "README.md"
+
 classifiers = [
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: Python :: 3.8",
@@ -23,6 +23,8 @@ classifiers = [
     "License :: OSI Approved :: Apache Software License",
     "License :: OSI Approved :: MIT License",
 ]
+
+requires-python = ">=3.8"
 dependencies = [
     "numpy>=1.23.0, <2.0.0",
     "pandas>=2.0.0, <3.0.0",