diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index d5ac974..97fe82f 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -7,7 +7,6 @@ jobs:
     strategy:
       matrix:
         python-version: ["3.10", "3.11"]
-        pydantic-version: ["1.9.1", "2.0.3"]
 
     permissions:
       id-token: write
@@ -33,4 +32,4 @@ jobs:
         run: poetry run mypy open_rarity
 
       - name: Unit tests
-        run: poetry run pytest --cov-config=.coveragerc --cov=open_rarity tests/
+        run: nox --session tests-${{ matrix.python_version }}
diff --git a/noxfile.py b/noxfile.py
new file mode 100644
index 0000000..dffb6a0
--- /dev/null
+++ b/noxfile.py
@@ -0,0 +1,9 @@
+import nox
+from nox import Session
+
+
+@nox.session(python=["3.10", "3.11"])
+@nox.parametrize("pydantic", ["1.9.1", "2.0.3"])
+def tests(session: Session, pydantic):
+    session.install(f'pydantic=={pydantic}')
+    session.run("poetry", "run", "pytest")
diff --git a/pyproject.toml b/pyproject.toml
index 8116d03..f2c2490 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ python = ">=3.10,<3.12"
 requests = "^2.28.1"
 scipy = "^1.9.0"
 
-[tool.poetry.dev-dependencies]
+[tool.poetry.group.dev.dependencies]
 black = "^23.7.0"
 flake8 = "^5.0.2"
 flake8-bugbear = "^22.7.1"
@@ -40,6 +40,7 @@ pytest = "^7.1"
 pytest-cov = "^3.0"
 pytest-mock = "^3.10.0"
 types-requests = "^2.28.6"
+nox = "^2023.4.22"
 
 [tool.black]
 line-length = 88