diff --git a/contrib/pyln-testing/.gitignore b/contrib/pyln-testing/.gitignore
new file mode 100644
index 000000000000..c04bc49f76fa
--- /dev/null
+++ b/contrib/pyln-testing/.gitignore
@@ -0,0 +1 @@
+poetry.lock
diff --git a/contrib/pyln-testing/pyln/testing/__init__.py b/contrib/pyln-testing/pyln/testing/__init__.py
index 6225cf0ce456..8891f5e2285e 100644
--- a/contrib/pyln-testing/pyln/testing/__init__.py
+++ b/contrib/pyln-testing/pyln/testing/__init__.py
@@ -1,4 +1,4 @@
-from .__version__ import __version__
+__version__ = "0.10.2"
 
 __all__ = [
     "__version__",
diff --git a/contrib/pyln-testing/pyproject.toml b/contrib/pyln-testing/pyproject.toml
new file mode 100644
index 000000000000..e7159d9808c6
--- /dev/null
+++ b/contrib/pyln-testing/pyproject.toml
@@ -0,0 +1,27 @@
+[tool.poetry]
+name = "pyln-testing"
+version = "0.10.2"
+description = "Test your c-lightning integration, plugins or whatever you want"
+authors = ["Christian Decker <decker.christian@gmail.com>"]
+license = "BSD-MIT"
+
+packages = [
+  { include = "pyln/testing" },
+]
+
+[tool.poetry.dependencies]
+python = "^3.7"
+pytest = "^7.0.1"
+ephemeral-port-reserve = "^1.1.4"
+psycopg2 = "^2.9.3"
+python-bitcoinlib = "^0.11.0"
+jsonschema = "^4.4.0"
+pyln-client = { path = "../pyln-client" }
+Flask = "^2.0.3"
+cheroot = "^8.6.0"
+psutil = "^5.9.0"
+[tool.poetry.dev-dependencies]
+
+[build-system]
+requires = ["poetry-core>=1.0.0"]
+build-backend = "poetry.core.masonry.api"
diff --git a/contrib/pyln-testing/requirements.txt b/contrib/pyln-testing/requirements.txt
deleted file mode 100644
index 1b9fcc647929..000000000000
--- a/contrib/pyln-testing/requirements.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-Flask==1.1.*
-cheroot==8.5.*
-ephemeral-port-reserve==1.1.1
-flaky ~= 3.7.0
-psutil==5.7.*
-psycopg2-binary==2.8.*
-pytest-rerunfailures==9.1.1
-pytest-timeout ~= 1.4.2
-pytest-xdist ~= 2.2.0
-pytest==6.1.*
-python-bitcoinlib==0.11.*
-jsonschema==3.2.*
diff --git a/contrib/pyln-testing/setup.py b/contrib/pyln-testing/setup.py
deleted file mode 100644
index d20aaa2cfa6d..000000000000
--- a/contrib/pyln-testing/setup.py
+++ /dev/null
@@ -1,29 +0,0 @@
-from setuptools import setup
-
-
-with open('README.md', encoding='utf-8') as f:
-    long_description = f.read()
-
-with open('requirements.txt', 'r') as f:
-    requirements = [l.strip() for l in f]
-
-setup(name='pyln-testing',
-      description='Library to facilitate writing tests for for lightningd',
-      long_description=long_description,
-      long_description_content_type='text/markdown',
-      url='http://github.com/ElementsProject/lightning',
-      author='Christian Decker',
-      author_email='decker.christian@gmail.com',
-      install_requires=requirements,
-      license='MIT',
-      packages=['pyln.testing'],
-      use_scm_version={
-          "root": "../..",
-          "relative_to": __file__,
-          "write_to": "contrib/pyln-testing/pyln/testing/__version__.py",
-          "write_to_template": "__version__ = \"{version}\"\n",
-          "version_scheme": "post-release",
-          "local_scheme": "no-local-version",
-      },
-      setup_requires=["setuptools_scm"],
-      zip_safe=True)