diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8a97e4f27b..61d55115ed 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All changes to Catstodon that aren't Mastodon or glitch-soc Mastodon changes wil
 
 All release dates, as well as most other dates, are intended to be read as "within the day, in UTC time."
 
+## [v4.3.0-rc.1+cat.1.0.1] - 2024-10-04
+
+- Fix inability to create ActivityPub messages
+
 ## [v4.3.0-rc.1+cat.1.0.0] - 2024-10-03
 
 - Upstream changes
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index c3221251e6..80b085475b 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -25,7 +25,7 @@ module Mastodon
     end
 
     def catstodon_revision
-      '1.0.0'
+      '1.0.1'
     end
 
     def build_metadata