diff --git a/pkgs/development/python-modules/bsdiff4/default.nix b/pkgs/development/python-modules/bsdiff4/default.nix
index 5d3bf14d7506..26229e3b9e5d 100644
--- a/pkgs/development/python-modules/bsdiff4/default.nix
+++ b/pkgs/development/python-modules/bsdiff4/default.nix
@@ -7,14 +7,14 @@
 
 buildPythonPackage rec {
   pname = "bsdiff4";
-  version = "1.2.5";
+  version = "1.2.6";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-zdg/gg7Ljx72ek5fCxUsYdMnyver81qpp2NBORWyE2g=";
+    hash = "sha256-KrV9AaeLOeKeWszJz+rUEwmC3tncy8QmG9DpxR1rdR0=";
   };
 
   pythonImportsCheck = [ "bsdiff4" ];