diff --git a/requirements.txt b/requirements.txt
index 5babe69..fb9e1cd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,4 +8,4 @@ Werkzeug==2.0.2
 Flask_Migrate==3.1.0
 gunicorn==20.1.0
 psycopg2-binary==2.9.3
-pytest-cov==3.0.0
+pytest-cov==4.0.0