diff --git a/pkgs/development/python-modules/matrix-common/default.nix b/pkgs/development/python-modules/matrix-common/default.nix
new file mode 100644
index 000000000000..44d37b988a7d
--- /dev/null
+++ b/pkgs/development/python-modules/matrix-common/default.nix
@@ -0,0 +1,27 @@
+{ stdenv
+, lib
+, buildPythonPackage
+, fetchPypi
+, attrs
+}:
+
+buildPythonPackage rec {
+  pname = "matrix_common";
+  version = "1.0.0";
+  format = "pyproject";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "sha256-ZmiKRoJ8hv1USuJBDzV2U1uIFt2lRxmT+iAOqOShJK4=";
+  };
+
+  propagatedBuildInputs = [ attrs ];
+  pythonImportsCheck = [ "matrix_common" ];
+
+  meta = with lib; {
+    description = "Common utilities for Synapse, Sydent and Sygnal";
+    homepage = "https://github.com/matrix-org/matrix-python-common";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ sumnerevans ];
+  };
+}
diff --git a/pkgs/servers/matrix-synapse/default.nix b/pkgs/servers/matrix-synapse/default.nix
index dbb6fbc84f50..e8a887fa93c1 100644
--- a/pkgs/servers/matrix-synapse/default.nix
+++ b/pkgs/servers/matrix-synapse/default.nix
@@ -11,11 +11,11 @@ in
 with python3.pkgs;
 buildPythonApplication rec {
   pname = "matrix-synapse";
-  version = "1.49.2";
+  version = "1.50.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "7b795ecfc36e3f57eb7cffbc5ef9da1745b777536416c31509b3e6220c39ca4d";
+    sha256 = "sha256-fdO+HJ1+fk+s65jLkPDiG+Ei89x5Fbkh9BUUFQ3NJ3M=";
   };
 
   buildInputs = [ openssl ];
@@ -31,6 +31,7 @@ buildPythonApplication rec {
     jinja2
     jsonschema
     lxml
+    matrix-common
     msgpack
     netaddr
     phonenumbers
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index beff0cddc89e..0c2ad54f5adf 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4875,6 +4875,8 @@ in {
 
   matrix-client = callPackage ../development/python-modules/matrix-client { };
 
+  matrix-common = callPackage ../development/python-modules/matrix-common { };
+
   matrix-nio = callPackage ../development/python-modules/matrix-nio { };
 
   mattermostdriver = callPackage ../development/python-modules/mattermostdriver { };