diff --git a/README.md b/README.md
index d4d3e1f..723e9c9 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,9 @@
 carchivetools
 =============
 
+**Notice** The package is considered to be deprecated in favor of
+[aaclient](https://github.com/mdavidsaver/aaclient).
+
 <a href="https://travis-ci.org/epicsdeb/carchivetools">
   <img src="https://travis-ci.org/epicsdeb/carchivetools.svg" title="Build Status Images">
 </a>
diff --git a/setup.py b/setup.py
index 8e7db95..59ca37c 100755
--- a/setup.py
+++ b/setup.py
@@ -12,10 +12,13 @@
 
 from numpy.distutils.misc_util import get_numpy_include_dirs
 
+import warnings
+
 if sys.version_info<(3,7):
-    import warnings
     warnings.warn("Python < 3.7 is no longer supported")
 
+warnings.warn("Deprecated in favor of https://github.com/mdavidsaver/aaclient")
+
 class GenProtobuf(Command):
     """Run protoc code generator
     """