diff --git a/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/README.md b/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/README.md
index b1540cd..223d9e6 100644
--- a/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/README.md
+++ b/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/README.md
@@ -41,7 +41,7 @@ Authenticates to Databricks using OAuth U2M (via the Databricks SDK), then downl
 ├── processing/                         # Downstream ML inference
 │   └── huggingface_inference.py
 ├── requirements/                       # Split by engine/use case
-│   ├── base.txt                        # databricks-sdk, python-dotenv
+│   ├── base.txt                        # databricks-sdk, python-dotenv, unitycatalog
 │   ├── daft.txt
 │   ├── duckdb.txt
 │   ├── ray.txt
diff --git a/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/requirements/base.txt b/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/requirements/base.txt
index bec59e7..ff3bd03 100644
--- a/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/requirements/base.txt
+++ b/2026-04-processing-unstructured-data-in-volumes-with-UC-open-APIs/requirements/base.txt
@@ -3,3 +3,4 @@
 # vending API (w.temporary_volume_credentials.generate_temporary_volume_credentials).
 databricks-sdk>=0.108.0
 python-dotenv
+unitycatalog