diff --git a/pkgs/by-name/ma/mastodon/source.nix b/pkgs/by-name/ma/mastodon/source.nix
index 00a99719379d..dc6982dca446 100644
--- a/pkgs/by-name/ma/mastodon/source.nix
+++ b/pkgs/by-name/ma/mastodon/source.nix
@@ -5,14 +5,14 @@
   patches ? [ ],
 }:
 let
-  version = "4.6.1";
+  version = "4.6.2";
 in
 applyPatches {
   src = fetchFromGitHub {
     owner = "mastodon";
     repo = "mastodon";
     rev = "v${version}";
-    hash = "sha256-vnFmyLcIeiDHsVxh6BHFjolsGM0n2thOwt3MXrkjEx8=";
+    hash = "sha256-RA9yGmWyzwiD/skPxOB27hqRxMqKGFmMMDOvHR5FjqI=";
     passthru = {
       inherit version;
       yarnHash = "sha256-G1keSWDDpp0vBAOqQI8y8n7bmAeo9Hrdbo7R+cVZQwE=";
diff --git a/pkgs/by-name/ma/mastodon/update.sh b/pkgs/by-name/ma/mastodon/update.sh
index 75d7e9b74540..75027aed0b32 100755
--- a/pkgs/by-name/ma/mastodon/update.sh
+++ b/pkgs/by-name/ma/mastodon/update.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env nix-shell
-#! nix-shell -i bash -p bundix coreutils diffutils nix-prefetch-github gnused jq yarn-berry_4.yarn-berry-fetcher
+#! nix-shell -i bash -p bundix coreutils diffutils nixfmt nix-prefetch-github gnused jq yarn-berry_4.yarn-berry-fetcher
 set -e
 
 OWNER=mastodon
@@ -111,6 +111,9 @@ echo "Creating gemset.nix"
 bundix --lockfile="$SOURCE_DIR/Gemfile.lock" --gemfile="$SOURCE_DIR/Gemfile"
 echo "" >> gemset.nix  # Create trailing newline to please EditorConfig checks
 
+# Fix formatting
+nixfmt gemset.nix
+
 echo "Updating yarnHash"
 yarn-berry-fetcher missing-hashes "$SOURCE_DIR/yarn.lock" > missing-hashes.json
 YARN_HASH="$(yarn-berry-fetcher prefetch "$SOURCE_DIR/yarn.lock" ./missing-hashes.json 2>/dev/null)"