diff --git a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/synapse-http-antispam.nix b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/synapse-http-antispam.nix
index f09938a98ec7..35cc6fcf54a3 100644
--- a/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/synapse-http-antispam.nix
+++ b/pkgs/by-name/ma/matrix-synapse-unwrapped/plugins/synapse-http-antispam.nix
@@ -10,14 +10,14 @@
 
 buildPythonPackage rec {
   pname = "synapse-http-antispam";
-  version = "0.3.0";
+  version = "0.4.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "maunium";
     repo = "synapse-http-antispam";
     tag = "v${version}";
-    hash = "sha256-wWm23+3o+/nx3xGkyShJm28mDPTbOhPbKgW3WfuB0Ng=";
+    hash = "sha256-YvgHIZ5Kr9WsX30QN8W5OJ4sxLB7EsLqUmCye3x+JQA=";
   };
 
   build-system = [ hatchling ];