diff --git a/CHANGELOG.md b/CHANGELOG.md
index a092daaffb..c05fdd679f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,17 @@
 
 All notable changes to this project will be documented in this file.
 
+## [4.3.6] - 2025-03-13
+
+### Security
+
+- Update dependency `omniauth-saml`
+- Update dependency `rack`
+
+### Fixed
+
+- Fix Stoplight errors when using `REDIS_NAMESPACE` (#34126 by @ClearlyClaire)
+
 ## [4.3.5] - 2025-03-10
 
 ### Changed
diff --git a/Gemfile.lock b/Gemfile.lock
index 4bad85f1a5..cdd6b15dcf 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -464,7 +464,7 @@ GEM
     oj (3.16.6)
       bigdecimal (>= 3.0)
       ostruct (>= 0.2)
-    omniauth (2.1.2)
+    omniauth (2.1.3)
       hashie (>= 3.4.6)
       rack (>= 2.2.3)
       rack-protection
@@ -475,9 +475,9 @@ GEM
     omniauth-rails_csrf_protection (1.0.2)
       actionpack (>= 4.2)
       omniauth (~> 2.0)
-    omniauth-saml (2.2.1)
+    omniauth-saml (2.2.3)
       omniauth (~> 2.1)
-      ruby-saml (~> 1.17)
+      ruby-saml (~> 1.18)
     omniauth_openid_connect (0.6.1)
       omniauth (>= 1.9, < 3)
       openid_connect (~> 1.1)
@@ -619,7 +619,7 @@ GEM
       activesupport (>= 3.0.0)
     raabro (1.4.0)
     racc (1.8.1)
-    rack (2.2.11)
+    rack (2.2.13)
     rack-attack (6.7.0)
       rack (>= 1.0, < 4)
     rack-cors (2.0.2)
@@ -767,7 +767,7 @@ GEM
       rubocop-rspec (~> 3, >= 3.0.1)
     ruby-prof (1.7.0)
     ruby-progressbar (1.13.0)
-    ruby-saml (1.17.0)
+    ruby-saml (1.18.0)
       nokogiri (>= 1.13.10)
       rexml
     ruby-vips (2.2.3)
diff --git a/docker-compose.yml b/docker-compose.yml
index c0b9721ed6..5158342a4e 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -59,7 +59,7 @@ services:
   web:
     # You can uncomment the following line if you want to not use the prebuilt image, for example if you have local code changes
     # build: .
-    image: ghcr.io/mastodon/mastodon:v4.3.5
+    image: ghcr.io/mastodon/mastodon:v4.3.6
     restart: always
     env_file: .env.production
     command: bundle exec puma -C config/puma.rb
@@ -83,7 +83,7 @@ services:
     # build:
     #   dockerfile: ./streaming/Dockerfile
     #   context: .
-    image: ghcr.io/mastodon/mastodon-streaming:v4.3.5
+    image: ghcr.io/mastodon/mastodon-streaming:v4.3.6
     restart: always
     env_file: .env.production
     command: node ./streaming/index.js
@@ -102,7 +102,7 @@ services:
   sidekiq:
     # You can uncomment the following line if you want to not use the prebuilt image, for example if you have local code changes
     # build: .
-    image: ghcr.io/mastodon/mastodon:v4.3.5
+    image: ghcr.io/mastodon/mastodon:v4.3.6
     restart: always
     env_file: .env.production
     command: bundle exec sidekiq
diff --git a/lib/mastodon/version.rb b/lib/mastodon/version.rb
index 6e69b3f6cc..d8c19eefd6 100644
--- a/lib/mastodon/version.rb
+++ b/lib/mastodon/version.rb
@@ -13,7 +13,7 @@ module Mastodon
     end
 
     def patch
-      5
+      6
     end
 
     def default_prerelease
diff --git a/lib/redis/namespace_extensions.rb b/lib/redis/namespace_extensions.rb
index 9af59c296e..2be738b04d 100644
--- a/lib/redis/namespace_extensions.rb
+++ b/lib/redis/namespace_extensions.rb
@@ -5,6 +5,10 @@ class Redis
     def exists?(...)
       call_with_namespace('exists?', ...)
     end
+
+    def with
+      yield self
+    end
   end
 end