diff --git a/requirements_dev_optional.txt b/requirements_dev_optional.txt
index 8fd08612f1..b6a01daf56 100644
--- a/requirements_dev_optional.txt
+++ b/requirements_dev_optional.txt
@@ -16,7 +16,7 @@ tox==3.25.0
 coverage
 flake8==4.0.1
 pytest-cov==3.0.0
-pytest-doctestplus==0.12.0
+pytest-doctestplus==0.12.1
 pytest-timeout==2.1.0
 h5py==3.6.0
 fsspec==2022.5.0