diff --git a/requirements.txt b/requirements.txt
index 956536b5..11e7afc4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 scikit-learn[alldeps]==0.21.3
 pandas==0.25.1
-pytest-cov==2.7.1
+pytest-cov==4.0.0
 flake8==3.7.8
 matplotlib==3.1.1
 numpy==1.17.2