diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54bc2b4038ea4e..5f970519e4ad58 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [4.2.3] - 2023-12-05
+
+### Fixed
+
+- Fix dependency on `json-canonicalization` version that has been made unavailable since last release
+
 ## [4.2.2] - 2023-12-04
 
 ### Changed
diff --git a/Gemfile.lock b/Gemfile.lock
index d348811d3a1564..8ec471a5f9f43d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -148,6 +148,7 @@ GEM
       net-http-persistent (~> 4.0)
       nokogiri (~> 1, >= 1.10.8)
     base64 (0.1.1)
+    bcp47_spec (0.2.1)
     bcrypt (3.1.18)
     better_errors (2.10.1)
       erubi (>= 1.0.0)
@@ -377,19 +378,19 @@ GEM
     ipaddress (0.8.3)
     jmespath (1.6.2)
     json (2.6.3)
-    json-canonicalization (0.3.2)
+    json-canonicalization (1.0.0)
     json-jwt (1.15.3)
       activesupport (>= 4.2)
       aes_key_wrap
       bindata
       httpclient
-    json-ld (3.2.5)
+    json-ld (3.3.1)
       htmlentities (~> 4.3)
-      json-canonicalization (~> 0.3, >= 0.3.2)
+      json-canonicalization (~> 1.0)
       link_header (~> 0.0, >= 0.0.8)
       multi_json (~> 1.15)
       rack (>= 2.2, < 4)
-      rdf (~> 3.2, >= 3.2.10)
+      rdf (~> 3.3)
     json-ld-preloaded (3.2.2)
       json-ld (~> 3.2)
       rdf (~> 3.2)
@@ -593,7 +594,8 @@ GEM
       zeitwerk (~> 2.5)
     rainbow (3.1.1)
     rake (13.0.6)
-    rdf (3.2.11)
+    rdf (3.3.1)
+      bcp47_spec (~> 0.2)
       link_header (~> 0.0, >= 0.0.8)
     rdf-normalize (0.6.1)
       rdf (~> 3.2)
diff --git a/docker-compose.yml b/docker-compose.yml
index efb8e528eb826c..dda71cb091089c 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -56,7 +56,7 @@ services:
 
   web:
     build: .
-    image: ghcr.io/mastodon/mastodon:v4.2.2
+    image: ghcr.io/mastodon/mastodon:v4.2.3
     restart: always
     env_file: .env.production
     command: bash -c "rm -f /mastodon/tmp/pids/server.pid; bundle exec rails s -p 3000"
@@ -77,7 +77,7 @@ services:
 
   streaming:
     build: .
-    image: ghcr.io/mastodon/mastodon:v4.2.2
+    image: ghcr.io/mastodon/mastodon:v4.2.3
     restart: always
     env_file: .env.production
     command: node ./streaming
@@ -95,7 +95,7 @@ services:
 
   sidekiq:
     build: .
-    image: ghcr.io/mastodon/mastodon:v4.2.2
+    image: ghcr.io/mastodon/mastodon:v4.2.3
     restart: always
     env_file: .env.production
     command: bundle exec sidekiq
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index 5e400fa6f4c160..e23a4afa949d79 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -9,7 +9,7 @@ def kmyblue_major
     end
 
     def kmyblue_minor
-      10
+      11
     end
 
     def kmyblue_flag
@@ -25,7 +25,7 @@ def minor
     end
 
     def patch
-      2
+      3
     end
 
     def default_prerelease