diff --git a/requirements_dev_optional.txt b/requirements_dev_optional.txt
index 3456cca21a..8e54894730 100644
--- a/requirements_dev_optional.txt
+++ b/requirements_dev_optional.txt
@@ -7,7 +7,7 @@ ipywidgets==8.1.2
 # optional library requirements for services
 # don't let pyup change pinning for azure-storage-blob, need to pin to older
 # version to get compatibility with azure storage emulator on appveyor (FIXME)
-azure-storage-blob==12.16.0 # pyup: ignore
+azure-storage-blob==12.20.0 # pyup: ignore
 redis==5.0.4
 types-redis
 types-setuptools