diff --git a/overlays/default.nix b/overlays/default.nix
index 6b81e38d..3c1dd0ce 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -14,6 +14,15 @@
             in
             {
               element-themes = prev.callPackage ./pkgs/element-themes { inherit (inputs) element-themes; };
+              mastodon = prev.mastodon.override {
+                 version = "4.2.5";
+                 patches = [
+                   (final.fetchpatch {
+                     url = "https://github.com/mastodon/mastodon/compare/v4.2.4...v4.2.5.patch";
+                     hash = "sha256-CtzYV1i34s33lV/1jeNcr9p/x4Es1zRaf4l1sNWVKYk=";
+                   })
+                 ];
+               };
             })
         ];
       });