diff --git a/pkgs/development/python-modules/s3transfer/default.nix b/pkgs/development/python-modules/s3transfer/default.nix
index 2ba5a944d711..18ffbc4e5c35 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 = "0.2.1";
+  version = "0.3.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "6efc926738a3cd576c2a79725fed9afde92378aa5c6a957e3af010cb019fac9d";
+    sha256 = "921a37e2aefc64145e7b73d50c71bb4f26f46e4c9f414dc648c6245ff92cf7db";
   };
 
   propagatedBuildInputs =