diff --git a/pkgs/development/python-modules/fastbencode/default.nix b/pkgs/development/python-modules/fastbencode/default.nix
index 34e9c83e978c..b56aca8ff290 100644
--- a/pkgs/development/python-modules/fastbencode/default.nix
+++ b/pkgs/development/python-modules/fastbencode/default.nix
@@ -12,19 +12,19 @@
 
 buildPythonPackage rec {
   pname = "fastbencode";
-  version = "0.3.6";
+  version = "0.3.7";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "breezy-team";
     repo = "fastbencode";
     tag = "v${version}";
-    hash = "sha256-Vn9NcJQaSF+k2TyRTAA9yMWiV+kYrfw6RIbIe99CCsg=";
+    hash = "sha256-fNvxeAKCHjtD9nl7Jhkzecu2CbTfOyPjdYedCPpqYgc=";
   };
 
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit pname version src;
-    hash = "sha256-r229xfSrkbDEfm/nGFuQshyP4o04US0xJiRK4oXtaYE=";
+    hash = "sha256-e6TaJyHfrUHampTX42rPqdjQu7myj2+zahVJS+7SzIM=";
   };
 
   nativeBuildInputs = [