diff --git a/pkgs/development/python-modules/bleak/default.nix b/pkgs/development/python-modules/bleak/default.nix
index f229beb2b049..aecc904af503 100644
--- a/pkgs/development/python-modules/bleak/default.nix
+++ b/pkgs/development/python-modules/bleak/default.nix
@@ -4,13 +4,13 @@
 
 buildPythonPackage rec {
   pname = "bleak";
-  version = "0.11.0";
+  version = "0.12.0";
 
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "1zs5lz3r17a2xn19i4na132iccyjsl9navj0d3v7gks7hlcad5kp";
+    sha256 = "sha256-pNHz24YjB6FB9ZLC3LoXS+2qzhforflNXzG6OWFqCvk=";
   };
 
   postPatch = ''