diff --git a/pyproject.toml b/pyproject.toml
index 2ddd03a..1952278 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,25 +1,21 @@
 [build-system]
-requires = ["setuptools>=42", "wheel"]
-build-backend = "setuptools.build_meta"
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"
 
-[project]
+[tool.poetry]
 name = "appendfilename"
 version = "2025.5.14"
 description = "Intelligent appending text to file names, considering file extensions and file tags"
-# readme = "README.org"
 readme = "README.md"
-requires-python = ">=3.9"
-license = {file = "license.txt"}
-authors = [
-    {name="Karl Voit", email="tools@Karl-Voit.at"},
-]
+license = "GPL-3.0-or-later"
+authors = ["Karl Voit <tools@Karl-Voit.at>"]
 keywords = [
     "file managing",
     "file management",
     "files",
     "name",
     "time",
-    "time-stamps",
+    "time-stamps"
 ]
 classifiers = [
     "Programming Language :: Python :: 3 :: Only",
@@ -27,26 +23,17 @@ classifiers = [
     "Environment :: Console",
     "Intended Audience :: End Users/Desktop",
     "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
-    "Operating System :: OS Independent",
-]
-dependencies = [
-    "pyreadline3"
+    "Operating System :: OS Independent"
 ]
 
-[project.optional-dependencies]
-dev = [
-    "build",
-    "pytest",
-]
+[tool.poetry.dependencies]
+python = ">=3.9"
+pyreadline3 = "*"
 
-[project.urls]
-Homepage = "https://github.com/novoid/appendfilename"
-Repository = "https://github.com/novoid/appendfilename"
-Issues = "https://github.com/novoid/appendfilename/issues"
+[tool.poetry.dev-dependencies]
+build = "*"
+pytest = "*"
 
-[project.scripts]
+[tool.poetry.scripts]
 appendfilename = "appendfilename:main"
 
-[tools.setuptools.packages.find]
-where = ["."]
-