diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4bb5059..65f96cf 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -25,11 +25,11 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -e ".[dev]"
-        pip install coveralls pytest-cov
+        pip install pytest pytest-cov coveralls
 
     - name: Run tests
       run: |
-        pytest --cov=mmsbm --cov-report=xml tests/
+        PYTHONPATH=$PYTHONPATH:$(pwd) pytest tests/ -v --cov=mmsbm --cov-report=xml
 
     - name: Upload coverage to Coveralls
       env:
@@ -37,7 +37,6 @@ jobs:
         COVERALLS_FLAG_NAME: ${{ matrix.python-version }}
         COVERALLS_PARALLEL: true
       run: |
-        pip install coveralls
         coveralls --service=github
 
   coveralls:
diff --git a/pyproject.toml.py b/pyproject.toml.py
new file mode 100644
index 0000000..3670f50
--- /dev/null
+++ b/pyproject.toml.py
@@ -0,0 +1,8 @@
+[build-system]
+requires = ["setuptools>=42", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]
+addopts = "--cov=mmsbm --cov-report=term-missing"
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 58e9ebc..37fb907 100644
--- a/setup.py
+++ b/setup.py
@@ -39,6 +39,8 @@
     extras_require={
         "dev": [
             "pytest >= 3.7",
+            'pytest-cov',
+            'coveralls',
         ],
     },
 )
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/tests/tests.py b/tests/test_mmsbm.py
similarity index 98%
rename from tests/tests.py
rename to tests/test_mmsbm.py
index 0a27ca0..280b1a5 100644
--- a/tests/tests.py
+++ b/tests/test_mmsbm.py
@@ -2,7 +2,7 @@
 import pandas as pd
 import numpy as np
 
-from src.mmsbm import MMSBM
+from mmsbm import MMSBM
 
 
 RATING_NUM = 100