diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index 3c47ddf..2c4aa54 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -63,7 +63,7 @@ jobs:
       working-directory: ${{github.workspace}}/python
       run: |
         python -m pip install --require-hashes --no-dependencies -r ../.github/workflows/requirements/base.txt
-        python setup.py test
+        python -m pytest
         python setup.py bdist_wheel
 
     - name: Upload artifcacts
diff --git a/.github/workflows/requirements/base.in b/.github/workflows/requirements/base.in
index fcbc1c4..d32433c 100644
--- a/.github/workflows/requirements/base.in
+++ b/.github/workflows/requirements/base.in
@@ -2,3 +2,4 @@ pip
 setuptools
 wheel
 twine
+pytest
diff --git a/python/setup.py b/python/setup.py
index 3fe6a63..f7d8cf1 100755
--- a/python/setup.py
+++ b/python/setup.py
@@ -211,4 +211,5 @@ setup(
         'Topic :: Software Development :: Libraries :: Python Modules',
     ],
     test_suite='sentencepiece_test.suite',
+    tests_require=['pytest'],
 )
diff --git a/python/test/sentencepiece_test.py b/python/test/sentencepiece_test.py
index 701ece9..b043cc2 100755
--- a/python/test/sentencepiece_test.py
+++ b/python/test/sentencepiece_test.py
@@ -15,11 +15,14 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.!
 
+import sys
+
+sys.path.insert(0, 'src')
+
 from collections import defaultdict
 import io
 import os
 import pickle
-import sys
 import unittest
 import sentencepiece as spm