diff --git a/pkgs/development/python-modules/python-bsblan/default.nix b/pkgs/development/python-modules/python-bsblan/default.nix
index 42e9abe85c3b..8c0e521ed18d 100644
--- a/pkgs/development/python-modules/python-bsblan/default.nix
+++ b/pkgs/development/python-modules/python-bsblan/default.nix
@@ -20,7 +20,7 @@
 
 buildPythonPackage rec {
   pname = "python-bsblan";
-  version = "0.6.4";
+  version = "1.2.1";
   pyproject = true;
 
   disabled = pythonOlder "3.12";
@@ -29,7 +29,7 @@ buildPythonPackage rec {
     owner = "liudger";
     repo = "python-bsblan";
     rev = "refs/tags/v${version}";
-    hash = "sha256-mOVX65YRDUac0GoB9+tHIYtvNDGyxT0BSsj8I3OzuBI=";
+    hash = "sha256-b+/Cy8F2xUsYOr8PGQxkdXD07pAECNmbeWbuysSAT2I=";
   };
 
   postPatch = ''