diff --git a/RELEASE.md b/RELEASE.md
index f83b619..aa8d891 100644
--- a/RELEASE.md
+++ b/RELEASE.md
@@ -1,10 +1,12 @@
-# Unofficial snap for Mastodon 4.2.11
+# Unofficial snap for Mastodon 4.2.12
 
-See also the release notes for Mastodon: https://github.com/mastodon/mastodon/releases/tag/v4.2.11
+⚠️ This is a hotfix release for an issue introduced in 4.2.11.
+
+See also the release notes for Mastodon: https://github.com/mastodon/mastodon/releases/tag/v4.2.12
 
 This release contains:
 
-* Mastodon 4.2.11
+* Mastodon 4.2.12
 * Node 16.20.2 (see [#25787](https://github.com/mastodon/mastodon/discussions/25787#discussioncomment-6382898))
 * Ruby 3.2.3
 * Bundle 2.4.13
@@ -21,7 +23,3 @@ This release contains:
 * musl-libc 1.2.5
 * mastodon-bird-ui 1.8.5
 * tangerine-ui 1.9.5
-
-Changelog for 4.2.11snap1:
-
-* Upgrade nginx to 1.27.1
diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index eb7b952..fd6c687 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -9,7 +9,7 @@ description: |
   implements ActivityPub!)
 
 base: core20
-version: 4.2.11snap1
+version: 4.2.12snap1
 grade: stable
 confinement: strict
 
@@ -720,8 +720,8 @@ parts:
       - openssl1
       - imagemagick
     # NOTE: https://github.com/mastodon/mastodon/releases/latest
-    source: https://github.com/mastodon/mastodon/archive/refs/tags/v4.2.11.tar.gz
-    source-checksum: sha256/50c4dd072198d2c4068b04d9a3a5b4ee411c5831872a7e4f1d95ac01c46dbbb9
+    source: https://github.com/mastodon/mastodon/archive/refs/tags/v4.2.12.tar.gz
+    source-checksum: sha256/8fba0e4cc74233bee77752217673295ec4e32587abc2c9ae8967497147e691e5
     plugin: nil
     build-environment:
       - RUBY_BRANCH: "3.2" # NOTE: must be updated with ruby source