diff --git a/overlays/default.nix b/overlays/default.nix
index da0a2ea..945bef3 100644
--- a/overlays/default.nix
+++ b/overlays/default.nix
@@ -11,6 +11,18 @@ in
   nixpkgs.overlays = [
     heisenbridge
     matrix-synapse
+    (_: super: {
+      smug = super.smug.overrideAttrs (_: rec {
+        version = "0.3.3";
+
+        src = super.fetchFromGitHub {
+          owner = "ivaaaan";
+          repo = "smug";
+          rev = "v${version}";
+          sha256 = "sha256-dQp9Ov8Si9DfziVtX3dXsJg+BNKYOoL9/WwdalQ5TVw=";
+        };
+      });
+    })
   ] ++
   (if isUnstable
   then [