diff --git a/pkgs/development/python-modules/python-etcd/default.nix b/pkgs/development/python-modules/python-etcd/default.nix
index 61a1d02325ab..c1b3fdcba3b3 100644
--- a/pkgs/development/python-modules/python-etcd/default.nix
+++ b/pkgs/development/python-modules/python-etcd/default.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   buildPythonPackage,
+  nix-update-script,
   fetchFromGitHub,
   setuptools,
   urllib3,
@@ -14,14 +15,14 @@
 
 buildPythonPackage {
   pname = "python-etcd";
-  version = "0.5.0-unstable-2023-10-31";
+  version = "0.4.5-unstable-2024-08-09";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "jplana";
     repo = "python-etcd";
-    rev = "5aea0fd4461bd05dd96e4ad637f6be7bceb1cee5";
-    hash = "sha256-eVirStLOPTbf860jfkNMWtGf+r0VygLZRjRDjBMCVKg=";
+    rev = "d2889f7b23feee8797657b19c404f0d4034dd03c";
+    hash = "sha256-osiSeBdZBT3w9pJUBxD7cI9/2T7eiyj6M6+87T8bTj0=";
   };
 
   patches = [ ./remove-getheader-usage.patch ];
@@ -61,6 +62,10 @@ buildPythonPackage {
 
   __darwinAllowLocalNetworking = true;
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [ "--version=branch" ];
+  };
+
   meta = {
     description = "Python client for Etcd";
     homepage = "https://github.com/jplana/python-etcd";