diff --git a/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix b/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix
index b85e77bcebda..c4cce0f2767e 100644
--- a/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix
+++ b/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix
@@ -14,19 +14,19 @@
 
 python3Packages.buildPythonApplication rec {
   pname = "matrix-synapse";
-  version = "1.155.0";
+  version = "1.156.0";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "element-hq";
     repo = "synapse";
     rev = "v${version}";
-    hash = "sha256-ka92mJvm/7PaENPkQRWuw8c8BdzMvIuTsc3xSEmEms8=";
+    hash = "sha256-x3EVmNPqcxtvt6ZaPsDCCcr7Z0LIO257s2gO3HCNmKA=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit pname version src;
-    hash = "sha256-+Z2GyHlVothtcTKHjbr+iKQG8wi5tgtoZr8+FHYJEFk=";
+    hash = "sha256-N/JWRFz9OKcxigjp86AVVZGK63MdZmEzwHhBgBuWZcY=";
   };
 
   build-system =