diff --git a/pkgs/development/python-modules/canonicaljson/default.nix b/pkgs/development/python-modules/canonicaljson/default.nix
index 46ceee80c0f5..0787d4d09718 100644
--- a/pkgs/development/python-modules/canonicaljson/default.nix
+++ b/pkgs/development/python-modules/canonicaljson/default.nix
@@ -10,14 +10,14 @@
 
 buildPythonPackage rec {
   pname = "canonicaljson";
-  version = "1.6.4";
+  version = "1.6.5";
   format = "pyproject";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-bAmyEZUR8w6xEmz82XOhCCTiDxz9JQOc3j0SGN2cjY8=";
+    hash = "sha256-aN/BV7AR4H2Uv3S11MzAGVhYTtlC2d/V/dcGYJ6BzUs=";
   };
 
   nativeBuildInputs = [
@@ -49,6 +49,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Encodes objects and arrays as RFC 7159 JSON";
     homepage = "https://github.com/matrix-org/python-canonicaljson";
+    changelog = "https://github.com/matrix-org/python-canonicaljson/blob/v${version}/CHANGES.md";
     license = licenses.asl20;
     maintainers = with maintainers; [ fab ];
   };