diff --git a/requirements_dev_optional.txt b/requirements_dev_optional.txt
index 1120904bee..44444a6ad5 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==3.9.2
-pytest-cov==2.7.1
+pytest-cov==2.12.0
 pytest-doctestplus==0.4.0
 h5py==2.10.0
 s3fs==2021.5.0; python_version > '3.6'