diff --git a/requirements_dev_optional.txt b/requirements_dev_optional.txt
index 7ff673cebd..a3411acd67 100644
--- a/requirements_dev_optional.txt
+++ b/requirements_dev_optional.txt
@@ -14,7 +14,7 @@ types-setuptools
 pymongo==4.6.2
 # optional test requirements
 coverage
-pytest-cov==4.1.0
+pytest-cov==5.0.0
 pytest-doctestplus==1.2.1
 pytest-timeout==2.3.1
 h5py==3.10.0