diff --git a/pkgs/development/python-modules/trezor/default.nix b/pkgs/development/python-modules/trezor/default.nix
index 16fc8530a0da..cc31939ff032 100644
--- a/pkgs/development/python-modules/trezor/default.nix
+++ b/pkgs/development/python-modules/trezor/default.nix
@@ -5,11 +5,11 @@
 buildPythonPackage rec {
   name = "${pname}-${version}";
   pname = "trezor";
-  version = "0.9.0";
+  version = "0.9.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "2dd01e11d669cb8f5e40fcf1748bcabc41fb5f41edb010fc807dc3088f9bd7de";
+    sha256 = "a481191011bade98f1e9f1201e7c72a83945050657bbc90dc4ac32dc8b8b46a4";
   };
 
   propagatedBuildInputs = [ protobuf hidapi ecdsa mnemonic requests pyblake2 click libusb1 ];