diff --git a/pkgs/development/python-modules/s3transfer/default.nix b/pkgs/development/python-modules/s3transfer/default.nix
index 0ef7378fbf67..e41e4165b9cb 100644
--- a/pkgs/development/python-modules/s3transfer/default.nix
+++ b/pkgs/development/python-modules/s3transfer/default.nix
@@ -14,11 +14,11 @@
 
 buildPythonPackage rec {
   pname = "s3transfer";
-  version = "0.3.6";
+  version = "0.4.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "c5dadf598762899d8cfaecf68eba649cd25b0ce93b6c954b156aaa3eed160547";
+    sha256 = "sha256-ywIvSxZVHt67sxo3fT8JYA262nNj2MXbeXbn9Hcy4bI=";
   };
 
   propagatedBuildInputs =