diff --git a/docs/source/index.rst b/docs/source/index.rst
index 85874225..dcecb274 100644
--- a/docs/source/index.rst
+++ b/docs/source/index.rst
@@ -3,6 +3,12 @@ Welcome to PyJulia’s documentation!
 
 |github-action|
 
+caution::
+
+   Ongoing development of the Python/Julia interface has transitioned to
+   `PythonCall.jl/juliacall <https://github.com/JuliaPy/PythonCall.jl>`_,
+   please consider using that package instead.
+
 Experimenting with developing a better interface to
 `Julia language <https://julialang.org/>`_ that works with
 `Python <https://www.python.org/>`_ 3 and Julia v1.0+.