diff --git a/config/hosts/mastodon/mastodon.nix b/config/hosts/mastodon/mastodon.nix
index b9dced2..c0207d8 100644
--- a/config/hosts/mastodon/mastodon.nix
+++ b/config/hosts/mastodon/mastodon.nix
@@ -16,14 +16,14 @@ let
   };
   mastodonNekoverseOverlay = final: prev: {
     mastodon = (prev.mastodon.override rec {
-      version = "4.3.6";
+      version = "4.3.7";
       srcOverride = final.applyPatches {
         src = pkgs.stdenv.mkDerivation {
           name = "mastodonWithThemes";
           src = pkgs.fetchgit {
             url = "https://github.com/mastodon/mastodon.git";
             rev = "v${version}";
-            sha256 = "";
+            sha256 = "sha256-KmeWBMuyJ/ZdZnFXAlpvgXV+J8IZrcaTXvvui4l6mjY=";
           };
           # mastodon ships with broken symlinks, disable the check for that for now
           dontCheckForBrokenSymlinks = true;