diff --git a/mastodon.yaml b/mastodon.yaml
index bb0a810..f729d7b 100644
--- a/mastodon.yaml
+++ b/mastodon.yaml
@@ -155,7 +155,7 @@ Resources:
         AlertingModule: !GetAtt 'Alerting.Outputs.StackName'
         ClientSgModule1: !GetAtt 'ClientSg.Outputs.StackName'
         ManagedPolicyArns: !Ref S3Policy
-        AppImage: 'ghcr.io/mastodon/mastodon:v4.2.3'
+        AppImage: 'ghcr.io/mastodon/mastodon:v4.2.4'
         AppCommand: 'bash,-c,bundle exec rails db:migrate && bundle exec rails s -p 3000'
         AppPort: '3000'
         AppEnvironment1Key: 'LOCAL_DOMAIN'
@@ -228,7 +228,7 @@ Resources:
         AlertingModule: !GetAtt 'Alerting.Outputs.StackName'
         ClientSgModule1: !GetAtt 'ClientSg.Outputs.StackName'
         ManagedPolicyArns: !Ref S3Policy
-        AppImage: 'ghcr.io/mastodon/mastodon:v4.2.3'
+        AppImage: 'ghcr.io/mastodon/mastodon:v4.2.4'
         AppCommand: 'bash,-c,node ./streaming'
         AppPort: '4000'
         AppEnvironment1Key: 'LOCAL_DOMAIN'
@@ -300,7 +300,7 @@ Resources:
         AlertingModule: !GetAtt 'Alerting.Outputs.StackName'
         ClientSgModule1: !GetAtt 'ClientSg.Outputs.StackName'
         ManagedPolicyArns: !Ref S3Policy
-        AppImage: 'ghcr.io/mastodon/mastodon:v4.2.3'
+        AppImage: 'ghcr.io/mastodon/mastodon:v4.2.4'
         AppCommand: 'bash,-c,bundle exec sidekiq'
         AppEnvironment1Key: 'LOCAL_DOMAIN'
         AppEnvironment1Value: !Ref DomainName