diff --git a/requirements-dev.txt b/requirements-dev.txt
index a37ac42ae..d7fcb7f2a 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -10,7 +10,7 @@ flake8-tidy-imports==4.1.0
 mypy==0.770
 pytest==5.4.2
 pytest-asyncio==0.12.0
-pytest-cov==2.8.1
+pytest-cov==2.9.0
 pytest-mock==3.1.0
 pytest-random-order==1.0.4