diff --git a/requirements.txt b/requirements.txt
index 95cd90d..614c304 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ joblib==0.*,>=0.14.1
 numpy==1.*,>=1.16.0
 pandas==1.*,>=1.3.0
 pre-commit==1.*,>=1.18.0
-pytest==5.*,>=5.3.0
+pytest>=5,<9
 pytest-cov==2.*,>=2.8.0
 pytest-runner==5.*,>=5.1.0
 scikit-learn==0.*,>=0.24.0