diff --git a/pkgs/development/python-modules/trezor/default.nix b/pkgs/development/python-modules/trezor/default.nix
index 0ade95bd96d3..2fcdd1be477e 100644
--- a/pkgs/development/python-modules/trezor/default.nix
+++ b/pkgs/development/python-modules/trezor/default.nix
@@ -25,14 +25,14 @@
 
 buildPythonPackage rec {
   pname = "trezor";
-  version = "0.13.8";
+  version = "0.13.9";
   format = "setuptools";
 
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-Y01O3fNWAyV8MhYY2FSMajWyc4Rle2XjsL261jWlfP8=";
+    hash = "sha256-lFC9e7nSPl4zo8nljhjwWLRMnZw0ymZLSYGnlaqfse8=";
   };
 
   nativeBuildInputs = [ installShellFiles ];
@@ -81,6 +81,7 @@ buildPythonPackage rec {
     description = "Python library for communicating with Trezor Hardware Wallet";
     mainProgram = "trezorctl";
     homepage = "https://github.com/trezor/trezor-firmware/tree/master/python";
+    changelog = "https://github.com/trezor/trezor-firmware/blob/python/v${version}/python/CHANGELOG.md";
     license = licenses.gpl3;
     maintainers = with maintainers; [
       np