SmartCookie and SerialCookie were recently deprecated
diff --git a/Doc/lib/libcookie.tex b/Doc/lib/libcookie.tex
index 18468e7..5c0078b 100644
--- a/Doc/lib/libcookie.tex
+++ b/Doc/lib/libcookie.tex
@@ -46,6 +46,7 @@
 cookie data is a huge security hole, as pickle strings can be crafted
 to cause arbitrary code to execute on your server.  It is supported
 for backwards compatibility only, and may eventually go away.
+\deprecated{2.3}
 \end{classdesc}
 
 \begin{classdesc}{SmartCookie}{\optional{input}}
@@ -57,6 +58,7 @@
 
 \strong{Note:} The same security warning from \class{SerialCookie}
 applies here.
+\deprecated{2.3}
 \end{classdesc}
 
 A further security note is warranted.  For backwards compatibility,