diff --git a/Dockerfile b/Dockerfile
index 98447e9..4b7ce3d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ghcr.io/mastodon/mastodon:v4.2.10
+FROM ghcr.io/mastodon/mastodon:v4.2.12
 
 USER root
 
@@ -12,5 +12,4 @@ RUN \
     ln -s /opt/my-mastodon /my-mastodon
 
 WORKDIR /opt/my-mastodon
-
-    # bundle exec rails assets:precompile
+# bundle exec rails assets:precompile
diff --git a/mastodon b/mastodon
index 9a53231..8034531 160000
--- a/mastodon
+++ b/mastodon
@@ -1 +1 @@
-Subproject commit 9a532313dc0523f54a908206733e0ffd3c93c590
+Subproject commit 8034531b3c982149aa1b16dafd9228338f1a9592