diff --git a/README.md b/README.md
index 82d4c99..5827271 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,6 @@
+> [!IMPORTANT]
+> # 👉 Now part of [Docling](https://github.com/DS4SD/docling)!
+
 <p align="center">
   <a href="https://github.com/DS4SD/quackling">
     <img loading="lazy" alt="Quackling" src="https://raw.githubusercontent.com/DS4SD/quackling/main/resources/logo.jpeg" width="150" />
diff --git a/quackling/__init__.py b/quackling/__init__.py
index bacc58a..9d56a25 100644
--- a/quackling/__init__.py
+++ b/quackling/__init__.py
@@ -2,3 +2,9 @@
 # Copyright IBM Corp. 2024 - 2024
 # SPDX-License-Identifier: MIT
 #
+
+import warnings
+
+warnings.warn(
+    "This package is deprecated; please instead use Docling (https://github.com/DS4SD/docling)"  # noqa
+)