diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c78d43a..bd737cc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,19 +19,19 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install -U pip
-        pip install -r requirements.txt
-    - name: Lint with flake8
+        python -m pip install -e ".[dev]"
+    - name: Lint with ruff
       run: |
-        flake8
+        ruff check spacy_partial_tagger
+        ruff check tests
     - name: Lint with black
       run: |
-        black . --check
-    - name: Lint with isort
-      run: |
-        isort -c .
+        black . --check spacy_partial_tagger
+        black . --check tests
     - name: Lint with mypy
       run: |
         mypy spacy_partial_tagger
+        mypy tests
     - name: Run tests
       run: |
         pytest --cov=spacy_partial_tagger --cov-report=term-missing
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index db7b796..ebcc448 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -16,10 +16,11 @@ jobs:
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip
-        pip install poetry
+        python -m pip install hatch build
     - name: Build a binary wheel and a source tarball
       run: |
-        poetry build
+        hatch version "${GITHUB_REF_NAME}"
+        python -m build
     - name: Publish a Python distribution to PyPI
       uses: pypa/gh-action-pypi-publish@release/v1
       with:
diff --git a/.gitignore b/.gitignore
index f859de0..f6bd162 100644
--- a/.gitignore
+++ b/.gitignore
@@ -160,3 +160,6 @@ cython_debug/
 
 .tool-versions
 poetry.lock
+.pdm-python
+pdm.toml
+pdm.lock
diff --git a/pyproject.toml b/pyproject.toml
index 7903937..d1cc1c7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,59 +1,60 @@
 [build-system]
-requires = ["poetry-core>=1.0.0"]
-build-backend = "poetry.core.masonry.api"
+requires = ["hatchling"]
+build-backend = "hatchling.build"
 
 [project]
 name = "spacy-partial-tagger"
-requires-python = ">=3.8"
-
-[tool.poetry]
-name = "spacy-partial-tagger"
-version = "0.15.2"
 description = "Sequence Tagger for Partially Annotated Dataset in spaCy"
-authors = ["yasufumi <yasufumi.taniguchi@gmail.com>"]
-license = "MIT"
-readme = "README.md"
-repository = "https://github.com/tech-sketch/spacy-partial-tagger"
+requires-python = ">=3.8,<4.0"
+readme = {file = "README.md", content-type = "text/markdown"}
+license = {file = "LICENSE"}
+authors = [
+    {name = "Yasufumi Taniguchi", email = "yasufumi.taniguchi@gmail.com"},
+]
 classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9"
 ]
+dependencies = [
+    "thinc<9.0.0,>=8.0.15",
+    "transformers[ja]<5.0.0,>=4.25.1",
+    "torch<3.0.0,>=2.0.1",
+    "spacy[transformers]<4.0.0,>=3.3.1",
+    "spacy-alignments<1.0.0,>=0.8.5",
+    "pytorch-partial-tagger<1.0.0,>=0.1.12",
+]
+dynamic = ["version"]
 
-[tool.poetry.dependencies]
-python = "^3.8"
-thinc = "^8.0.15"
-transformers = {extras = ["ja"], version = "^4.25.1"}
-torch = "^2.0.1"
-spacy = {extras = ["transformers"], version = "^3.3.1"}
-spacy-alignments = "^0.8.5"
-pytorch-partial-tagger = "^0.1.12"
+[project.urls]
+Repository = "https://github.com/doccano/spacy-partial-tagger"
 
-[tool.poetry.group.dev.dependencies]
-mypy = "^1.3.0"
-black = "^22.3.0"
-pytest = "^7.1.1"
-isort = "^5.10.1"
-flake8 = "^4.0.1"
-pytest-cov = "^3.0.0"
-ruff = "^0.0.270"
+[project.optional-dependencies]
+dev = [
+    "mypy>=1.3.1",
+    "black>=23.3.0",
+    "pytest>=7.1.1",
+    "isort>=5.10.1",
+    "flake8>=4.0.1",
+    "pytest-cov>=3.0.0",
+    "ruff>=0.0.270",
+]
 
-[tool.poetry.plugins.spacy_factories]
+[project.entry-points]
+[project.entry-points.spacy_factories]
 partial_ner = "spacy_partial_tagger.pipeline:make_partial_ner"
 
-[tool.poetry.plugins.spacy_architectures]
+[project.entry-points.spacy_architectures]
 "spacy-partial-tagger.PartialTagger.v1" = "spacy_partial_tagger.tagger:build_partial_tagger_v1"
 
+[tool.hatch.version]
+path = "spacy_partial_tagger/__about__.py"
+
 [tool.mypy]
 ignore_missing_imports = true
 disallow_untyped_defs = true
 show_error_codes = true
 
-[tool.isort]
-profile = "black"
-include_trailing_comma = true
-multi_line_output = 3
-
 [tool.black]
 exclude = '''
 /(
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index 6e74ebf..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,74 +0,0 @@
-black==22.12.0 ; python_version >= "3.8" and python_version < "4.0"
-blis==0.7.9 ; python_version >= "3.8" and python_version < "4.0"
-catalogue==2.0.8 ; python_version >= "3.8" and python_version < "4.0"
-certifi==2023.5.7 ; python_version >= "3.8" and python_version < "4.0"
-charset-normalizer==3.2.0 ; python_version >= "3.8" and python_version < "4.0"
-click==8.1.5 ; python_version >= "3.8" and python_version < "4.0"
-colorama==0.4.6 ; python_version >= "3.8" and python_version < "4.0" and sys_platform == "win32" or python_version >= "3.8" and python_version < "4.0" and platform_system == "Windows"
-confection==0.1.0 ; python_version >= "3.8" and python_version < "4.0"
-coverage[toml]==7.2.7 ; python_version >= "3.8" and python_version < "4.0"
-cymem==2.0.7 ; python_version >= "3.8" and python_version < "4.0"
-exceptiongroup==1.1.2 ; python_version >= "3.8" and python_version < "3.11"
-filelock==3.12.2 ; python_version >= "3.8" and python_version < "4.0"
-flake8==4.0.1 ; python_version >= "3.8" and python_version < "4.0"
-fsspec==2023.6.0 ; python_version >= "3.8" and python_version < "4.0"
-fugashi==1.2.1 ; python_version >= "3.8" and python_version < "4.0"
-huggingface-hub==0.16.4 ; python_version >= "3.8" and python_version < "4.0"
-idna==3.4 ; python_version >= "3.8" and python_version < "4.0"
-iniconfig==2.0.0 ; python_version >= "3.8" and python_version < "4.0"
-ipadic==1.0.0 ; python_version >= "3.8" and python_version < "4.0"
-isort==5.12.0 ; python_version >= "3.8" and python_version < "4.0"
-jinja2==3.1.2 ; python_version >= "3.8" and python_version < "4.0"
-langcodes==3.3.0 ; python_version >= "3.8" and python_version < "4.0"
-markupsafe==2.1.3 ; python_version >= "3.8" and python_version < "4.0"
-mccabe==0.6.1 ; python_version >= "3.8" and python_version < "4.0"
-mpmath==1.3.0 ; python_version >= "3.8" and python_version < "4.0"
-murmurhash==1.0.9 ; python_version >= "3.8" and python_version < "4.0"
-mypy-extensions==1.0.0 ; python_version >= "3.8" and python_version < "4.0"
-mypy==1.4.1 ; python_version >= "3.8" and python_version < "4.0"
-networkx==3.1 ; python_version >= "3.8" and python_version < "4.0"
-numpy==1.24.4 ; python_version >= "3.8" and python_version < "4.0"
-packaging==23.1 ; python_version >= "3.8" and python_version < "4.0"
-pathspec==0.11.1 ; python_version >= "3.8" and python_version < "4.0"
-pathy==0.10.2 ; python_version >= "3.8" and python_version < "4.0"
-plac==1.3.5 ; python_version >= "3.8" and python_version < "4.0"
-platformdirs==3.9.1 ; python_version >= "3.8" and python_version < "4.0"
-pluggy==1.2.0 ; python_version >= "3.8" and python_version < "4.0"
-preshed==3.0.8 ; python_version >= "3.8" and python_version < "4.0"
-pycodestyle==2.8.0 ; python_version >= "3.8" and python_version < "4.0"
-pydantic==1.10.11 ; python_version >= "3.8" and python_version < "4.0"
-pyflakes==2.4.0 ; python_version >= "3.8" and python_version < "4.0"
-pytest-cov==3.0.0 ; python_version >= "3.8" and python_version < "4.0"
-pytest==7.4.0 ; python_version >= "3.8" and python_version < "4.0"
-pytorch-partial-tagger==0.1.12 ; python_version >= "3.8" and python_version < "4.0"
-pyyaml==6.0 ; python_version >= "3.8" and python_version < "4.0"
-regex==2023.6.3 ; python_version >= "3.8" and python_version < "4.0"
-requests==2.31.0 ; python_version >= "3.8" and python_version < "4.0"
-rhoknp==1.3.0 ; python_version >= "3.8" and python_version < "4.0"
-ruff==0.0.270 ; python_version >= "3.8" and python_version < "4.0"
-safetensors==0.3.1 ; python_version >= "3.8" and python_version < "4.0"
-setuptools==68.0.0 ; python_version >= "3.8" and python_version < "4.0"
-smart-open==6.3.0 ; python_version >= "3.8" and python_version < "4.0"
-spacy-alignments==0.8.6 ; python_version >= "3.8" and python_version < "4.0"
-spacy-legacy==3.0.12 ; python_version >= "3.8" and python_version < "4.0"
-spacy-loggers==1.0.4 ; python_version >= "3.8" and python_version < "4.0"
-spacy-transformers==1.2.5 ; python_version >= "3.8" and python_version < "4.0"
-spacy==3.6.0 ; python_version >= "3.8" and python_version < "4.0"
-spacy[transformers]==3.6.0 ; python_version >= "3.8" and python_version < "4.0"
-srsly==2.4.6 ; python_version >= "3.8" and python_version < "4.0"
-sudachidict-core==20230110 ; python_version >= "3.8" and python_version < "4.0"
-sudachipy==0.6.7 ; python_version >= "3.8" and python_version < "4.0"
-sympy==1.12 ; python_version >= "3.8" and python_version < "4.0"
-thinc==8.1.10 ; python_version >= "3.8" and python_version < "4.0"
-tokenizers==0.13.3 ; python_version >= "3.8" and python_version < "4.0"
-tomli==2.0.1 ; python_version >= "3.8" and python_full_version < "3.11.0a7"
-torch==2.0.1 ; python_version >= "3.8" and python_version < "4.0"
-tqdm==4.65.0 ; python_version >= "3.8" and python_version < "4.0"
-transformers==4.30.2 ; python_version >= "3.8" and python_version < "4.0"
-transformers[ja]==4.30.2 ; python_version >= "3.8" and python_version < "4.0"
-typer==0.9.0 ; python_version >= "3.8" and python_version < "4.0"
-typing-extensions==4.7.1 ; python_version >= "3.8" and python_version < "4.0"
-unidic-lite==1.0.8 ; python_version >= "3.8" and python_version < "4.0"
-unidic==1.1.0 ; python_version >= "3.8" and python_version < "4.0"
-urllib3==2.0.3 ; python_version >= "3.8" and python_version < "4.0"
-wasabi==0.10.1 ; python_version >= "3.8" and python_version < "4.0"
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index 0584b2c..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,5 +0,0 @@
-[flake8]
-max-line-length = 88
-max-complexity = 18
-exclude = .git, .tox, .venv, .eggs, build, dist, docs
-ignore = E203,W503,W504
diff --git a/spacy_partial_tagger/__about__.py b/spacy_partial_tagger/__about__.py
new file mode 100644
index 0000000..c0d4999
--- /dev/null
+++ b/spacy_partial_tagger/__about__.py
@@ -0,0 +1 @@
+__version__ = "0.15.2"
diff --git a/spacy_partial_tagger/pipeline.py b/spacy_partial_tagger/pipeline.py
index 077967f..0184a49 100644
--- a/spacy_partial_tagger/pipeline.py
+++ b/spacy_partial_tagger/pipeline.py
@@ -51,7 +51,6 @@ def set_annotations(
         docs: List[Doc],
         tag_indices: Floats2d,
     ) -> None:
-
         for doc, indices in zip(docs, tag_indices.tolist()):
             indices = [index for index in indices if index != self.padding_index]
             alignment = doc.user_data["alignment"]
@@ -157,7 +156,6 @@ def add_label(self, label: str) -> int:
     def from_bytes(
         self, bytes_data: bytes, *, exclude: tuple = ()
     ) -> "PartialEntityRecognizer":
-
         self._validate_serialization_attrs()
 
         def load_model(b: bytes) -> None:
diff --git a/spacy_partial_tagger/tagger.py b/spacy_partial_tagger/tagger.py
index 51c01b2..fcf34cb 100644
--- a/spacy_partial_tagger/tagger.py
+++ b/spacy_partial_tagger/tagger.py
@@ -42,7 +42,6 @@ def forward(
     X: List[Doc],
     is_train: bool,
 ) -> Tuple[Tuple[Floats4d, Ints2d], Callable]:
-
     tokenizer: BaseTokenizer = model.attrs["tokenizer"]
 
     text_batch = tokenizer(tuple(doc.text for doc in X))
diff --git a/spacy_partial_tagger/tokenizer.py b/spacy_partial_tagger/tokenizer.py
index 7ec60fa..0414c4f 100644
--- a/spacy_partial_tagger/tokenizer.py
+++ b/spacy_partial_tagger/tokenizer.py
@@ -20,7 +20,6 @@ def __init__(
         tokenizer: _BertJapaneseTokenizer,
         tokenizer_args: Optional[dict] = None,
     ):
-
         self.__tokenizer = tokenizer
 
         self.__tokenizer_args = tokenizer_args or {
diff --git a/spacy_partial_tagger/util.py b/spacy_partial_tagger/util.py
index e5d4feb..2629f8e 100644
--- a/spacy_partial_tagger/util.py
+++ b/spacy_partial_tagger/util.py
@@ -30,7 +30,7 @@ def get_alignments(
     tokens = tokenizer.word_tokenizer.tokenize(
         text, never_split=tokenizer.all_special_tokens
     )
-    _, y2x = tokenizations.get_alignments(text, tokens)
+    _, y2x = tokenizations.get_alignments(list(text), tokens)
     token2char = {i: (x[0], x[-1] + 1) for i, x in enumerate(y2x)}
 
     pieces = [