diff --git a/README.org b/README.org
index d068316..18355d4 100644
--- a/README.org
+++ b/README.org
@@ -9,6 +9,8 @@
 
 This package provides the =elfeed-prune= command, which removes entries that match a predicate from the database. It messes with the internal database structure to remove entries. It's wise to make a backup of your ~/.elfeed folder, this package won't do it for you.
 
+This package was developed against [[https://github.com/skeeto/elfeed/tree/5c05a1eab37bc113ecb158a4d57fe05352fa2c6a][revision 5c05a1e]] of elfeed.
+
 * Installation
 
 Simply clone this repository and put it in your =load-path=.
@@ -28,7 +30,7 @@ This package will never be provided on MELPA, as it is a glorified hack for elfe
 
 By default, items will be pruned based on their age, or if they belong to a feed that's no longer in your =elfeed-feeds= variable.
 
-A predicate can be added to =elfeed-prune-predicates= or =elfeed-prune-keep-predicates=, which is a function that takes two parameters: an (elfeed) entry object and a feed object that corresponds to that entry..
+A predicate can be added to =elfeed-prune-predicates= or =elfeed-prune-keep-predicates=, which is a function that takes two parameters: an (elfeed) entry object and a feed object that corresponds to that entry.
 
 Any predicate in =elfeed-prune-predicates= that returns =t= gets pruned, unless any predicate in =elfeed-prune-keep-predicates= returns =t= for that same entry.