diff --git a/.github/workflows/pythonapp.yml b/.github/workflows/pythonapp.yml
index 5c0a35b..a8c5ec5 100644
--- a/.github/workflows/pythonapp.yml
+++ b/.github/workflows/pythonapp.yml
@@ -23,10 +23,8 @@ jobs:
         python-version: 3.9
     - name: Install dependencies
       run: |
-        python -m pip install --upgrade pip
-        pip install wheel
-        pip install pyinstaller pyqt5
-        pip install -r requirements-dev.txt
+        pip install poetry pyinstaller
+        poetry install
       shell: bash
     - name: Lint with flake8
       run: |
@@ -36,7 +34,7 @@ jobs:
         # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
         flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
     - name: Run pytest
-      run: python -m pytest
+      run: poetry run pytest
     - name: Build executable
       run: make
       shell: bash
diff --git a/README.md b/README.md
index 5ddf8f9..f11bbeb 100644
--- a/README.md
+++ b/README.md
@@ -28,14 +28,13 @@ Only Python 3 is supported. View the available locations and their IDs by lookin
 
 # Running the GUI on Debian or Ubuntu
 
-First, install pyqt and git:
+First, make sure to have Python and poetry installed. After that, run:
 
 ```
-sudo apt install python3-pip python3-pyqt5 git
 git clone https://github.com/rrooij/sd3save_editor.git
 cd sd3save_editor
-pip3 install -r requirements.txt
-python3 -m sd3save_editor.gui
+poetry install
+poetry run python -m sd3save_editor.gui
 ```
 
 There is also an executable available on the [Releases](https://github.com/rrooij/sd3save_editor/releases) page.
diff --git a/poetry.lock b/poetry.lock
new file mode 100644
index 0000000..a35fa6a
--- /dev/null
+++ b/poetry.lock
@@ -0,0 +1,171 @@
+# This file is automatically @generated by Poetry 1.5.1 and should not be changed by hand.
+
+[[package]]
+name = "colorama"
+version = "0.4.6"
+description = "Cross-platform colored terminal text."
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
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+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
+
+[[package]]
+name = "construct"
+version = "2.10.56"
+description = "A powerful declarative symmetric parser/builder for binary data"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "construct-2.10.56.tar.gz", hash = "sha256:97ba13edcd98546f10f7555af41c8ce7ae9d8221525ec4062c03f9adbf940661"},
+]
+
+[package.extras]
+extras = ["arrow", "enum34", "numpy", "ruamel.yaml"]
+
+[[package]]
+name = "exceptiongroup"
+version = "1.2.0"
+description = "Backport of PEP 654 (exception groups)"
+optional = false
+python-versions = ">=3.7"
+files = [
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+    {file = "exceptiongroup-1.2.0.tar.gz", hash = "sha256:91f5c769735f051a4290d52edd0858999b57e5876e9f85937691bd4c9fa3ed68"},
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+[package.extras]
+test = ["pytest (>=6)"]
+
+[[package]]
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+description = "brain-dead simple config-ini parsing"
+optional = false
+python-versions = ">=3.7"
+files = [
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+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
+
+[[package]]
+name = "packaging"
+version = "23.2"
+description = "Core utilities for Python packages"
+optional = false
+python-versions = ">=3.7"
+files = [
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+    {file = "packaging-23.2.tar.gz", hash = "sha256:048fb0e9405036518eaaf48a55953c750c11e1a1b68e0dd1a9d62ed0c092cfc5"},
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+[[package]]
+name = "pluggy"
+version = "1.4.0"
+description = "plugin and hook calling mechanisms for python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pluggy-1.4.0-py3-none-any.whl", hash = "sha256:7db9f7b503d67d1c5b95f59773ebb58a8c1c288129a88665838012cfb07b8981"},
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+]
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+[package.extras]
+dev = ["pre-commit", "tox"]
+testing = ["pytest", "pytest-benchmark"]
+
+[[package]]
+name = "pyqt5"
+version = "5.15.2"
+description = "Python bindings for the Qt cross platform application toolkit"
+optional = false
+python-versions = ">=3.5"
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+
+[package.dependencies]
+PyQt5-sip = ">=12.8,<13"
+
+[[package]]
+name = "pyqt5-sip"
+version = "12.13.0"
+description = "The sip module support for PyQt5"
+optional = false
+python-versions = ">=3.7"
+files = [
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+]
+
+[[package]]
+name = "pytest"
+version = "8.0.1"
+description = "pytest: simple powerful testing with Python"
+optional = false
+python-versions = ">=3.8"
+files = [
+    {file = "pytest-8.0.1-py3-none-any.whl", hash = "sha256:3e4f16fe1c0a9dc9d9389161c127c3edc5d810c38d6793042fb81d9f48a59fca"},
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+]
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+[package.dependencies]
+colorama = {version = "*", markers = "sys_platform == \"win32\""}
+exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
+iniconfig = "*"
+packaging = "*"
+pluggy = ">=1.3.0,<2.0"
+tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
+
+[package.extras]
+testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "setuptools", "xmlschema"]
+
+[[package]]
+name = "scalpl"
+version = "0.4.0"
+description = "A lightweight wrapper to operate on nested dictionaries seamlessly."
+optional = false
+python-versions = "*"
+files = [
+    {file = "scalpl-0.4.0.tar.gz", hash = "sha256:868aa529e0b75a698fc3742ea144c2d02fdb2f233fac7b193aabcea81ba8569e"},
+]
+
+[[package]]
+name = "tomli"
+version = "2.0.1"
+description = "A lil' TOML parser"
+optional = false
+python-versions = ">=3.7"
+files = [
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+    {file = "tomli-2.0.1.tar.gz", hash = "sha256:de526c12914f0c550d15924c62d72abc48d6fe7364aa87328337a31007fe8a4f"},
+]
+
+[metadata]
+lock-version = "2.0"
+python-versions = "^3.8"
+content-hash = "1f93282961ad8cf2d51757c40970660efe7f19053b0c83f0e2d3b728bf8affe7"
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..0711b97
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,21 @@
+[tool.poetry]
+name = "sd3save-editor"
+version = "0.7.0"
+description = "Save editor for Seiken Densetsu 3"
+authors = ["rrooij"]
+license = "GPLv3"
+readme = "README.md"
+packages = [{include = "sd3save_editor"}]
+
+[tool.poetry.dependencies]
+python = "^3.8"
+construct = "2.10.56"
+scalpl = "0.4.0"
+PyQt5 = "=5.15.2"
+
+[tool.poetry.group.test.dependencies]
+pytest = "^8.0.0"
+
+[build-system]
+requires = ["poetry-core"]
+build-backend = "poetry.core.masonry.api"
diff --git a/requirements-dev.txt b/requirements-dev.txt
deleted file mode 100644
index 8a83008..0000000
--- a/requirements-dev.txt
+++ /dev/null
@@ -1,3 +0,0 @@
-construct==2.10.56
-scalpl==0.4.0
-pytest
diff --git a/requirements.txt b/requirements.txt
deleted file mode 100644
index f739948..0000000
--- a/requirements.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-construct==2.10.56
-scalpl==0.4.0