diff --git a/pkgs/development/python-modules/ckcc-protocol/default.nix b/pkgs/development/python-modules/ckcc-protocol/default.nix
index eaf89948e8f2..24fc98915349 100644
--- a/pkgs/development/python-modules/ckcc-protocol/default.nix
+++ b/pkgs/development/python-modules/ckcc-protocol/default.nix
@@ -11,12 +11,12 @@
 
 buildPythonPackage rec {
   pname = "ckcc-protocol";
-  version = "1.0.2";
+  version = "1.0.3";
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "0zpn3miyapskw6s71v614pmga5zfain9j085axm9v50b8r71xh1i";
+    sha256 = "d83a77d94e9563c3fb0e982d847ec88ba6ac45e3e008e5e53729c0b9800097fc";
   };
 
   checkInputs = [