diff --git a/README.md b/README.md
index bfb14c8..3da5098 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Pythonのプロジェクトテンプレート
 ## プロジェクトインストール
 
 ```bash
-poetry install
+uv sync
 ```
 
 ## credentialファイル作成
@@ -26,4 +26,4 @@ uv run python src/main.py
 
 ```bash
 uv version --bump patch
-```
\ No newline at end of file
+```
diff --git a/main.py b/main.py
deleted file mode 100644
index e908128..0000000
--- a/main.py
+++ /dev/null
@@ -1,6 +0,0 @@
-def main():
-    print("Hello from python-starter!")
-
-
-if __name__ == "__main__":
-    main()
diff --git a/mise.toml b/mise.toml
index cacf888..6dd4b9b 100644
--- a/mise.toml
+++ b/mise.toml
@@ -1,5 +1,3 @@
-[tools]
-python = "3.13"
 
 [tasks.main]
 description = "プログラムを実行する"
@@ -23,4 +21,4 @@ run =[
   "mise run format",
   "mise run type-check",
   "mise run test"
-]
\ No newline at end of file
+]