diff --git a/pkgs/development/python-modules/mypy-boto3-s3/default.nix b/pkgs/development/python-modules/mypy-boto3-s3/default.nix
index 496a94e776e9..d38c4a557876 100644
--- a/pkgs/development/python-modules/mypy-boto3-s3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3-s3/default.nix
@@ -8,13 +8,13 @@
 
 buildPythonPackage rec {
   pname = "mypy-boto3-s3";
-  version = "1.19.12";
+  version = "1.20.0";
 
   disabled = pythonOlder "3.6";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-xgcGbWcrdFwFPQLJHmgRdY2XbwAiInZxmw6RiFVJ5F4=";
+    sha256 = "sha256-lCl3euh9o1MLQV1+DZiAh0h26CHauzjNNJPvtaRtHl8=";
   };
 
   propagatedBuildInputs = [