diff --git a/pkgs/development/python-modules/cloudpickle/default.nix b/pkgs/development/python-modules/cloudpickle/default.nix
index 279571c157c..e59f1d8afc4 100644
--- a/pkgs/development/python-modules/cloudpickle/default.nix
+++ b/pkgs/development/python-modules/cloudpickle/default.nix
@@ -2,11 +2,11 @@
 
 buildPythonPackage rec {
   pname = "cloudpickle";
-  version = "1.2.2";
+  version = "1.4.1";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "922401d7140e133253ff5fab4faa4a1166416066453a783b00b507dca93f8859";
+    sha256 = "0b6258a20a143603d53b037a20983016d4e978f554ec4f36b3d0895b947099ae";
   };
 
   buildInputs = [ pytest mock ];