diff --git a/.readthedocs.yml b/.readthedocs.yml
index c48cf994..78a5212a 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,7 +7,7 @@ python:
   install:
     - requirements: ci_build_requirements.txt
     - requirements: doc/requirements.txt
-    - requirements: requirements-dev.txt
+    - requirements: requirements.txt
     - method: pip
       path: .
 
diff --git a/doc/conf.py b/doc/conf.py
index 4376459d..1159723b 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -107,6 +107,16 @@ def __getattr__(cls, name):
     ),
 }
 
+
+rst_prolog = """.. attention::
+❗ Warning
+The PennyLaneAI organization has archived this repository, which is a snapshot of PennyLane-Lightning-GPU v0.32.
+This backend was integrated into `PennyLane-Lightning <https://github.com/PennyLaneAI/pennylane-lightning>`_ where its development continues.
+We direct users and developers to `PennyLane-Lightning <https://github.com/PennyLaneAI/pennylane-lightning>`_ to report `issues <https://github.com/PennyLaneAI/pennylane-lightning/issues>`_, make `pull requests <https://github.com/PennyLaneAI/pennylane-lightning/pulls>`_, etc.
+"""
+
+
+
 # Add any paths that contain templates here, relative to this directory.
 from pennylane_sphinx_theme import templates_dir
 templates_path = [templates_dir()]