diff --git a/CHANGELOG.md b/CHANGELOG.md
index c571b8ee17..835bc66567 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,14 @@ 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."
 
+## [4.3.0-alpha.5+glitch+cat+1.0.3] - 2024-07-30
+
+- Upstream changes
+  - Fixes for intermittent errors in grouped notifications
+- Emoji reaction patch changes
+  - "Fix reactions bar alignment in ungrouped notifications" ([30899e050e](https://git.kescher.at/CatCatNya/catstodon/commit/30899e050e4de5952da14278e804ea23110f9204)) by Essem
+  - Other commit for i18n fixes was already applied in Catstodon.
+
 ## [v4.3.0-alpha.5+glitch+cat+1.0.2] - 2024-07-16
 
 - Upstream changes
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index 5af4733551..f4a590dbd2 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -25,7 +25,7 @@ module Mastodon
     end
 
     def catstodon_revision
-      '1.0.2'
+      '1.0.3'
     end
 
     def build_metadata