diff --git a/requirements_dev_optional.txt b/requirements_dev_optional.txt
index 5996a4ffd1..d4d0a17a18 100644
--- a/requirements_dev_optional.txt
+++ b/requirements_dev_optional.txt
@@ -13,7 +13,7 @@ pymongo==3.11.4
 tox==3.14.0
 coverage
 flake8==3.8.3
-pytest-cov==2.7.1
+pytest-cov==2.11.1
 pytest-doctestplus==0.4.0
 h5py==2.10.0
 s3fs==0.5.1; python_version > '3.6'