diff --git a/pkgs/development/python-modules/mypy-boto3-builder/default.nix b/pkgs/development/python-modules/mypy-boto3-builder/default.nix
index d9253d5ce02..92ca2f52939 100644
--- a/pkgs/development/python-modules/mypy-boto3-builder/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3-builder/default.nix
@@ -17,7 +17,7 @@
 
 buildPythonPackage rec {
   pname = "mypy-boto3-builder";
-  version = "7.12.2";
+  version = "7.12.3";
   format = "pyproject";
 
   disabled = pythonOlder "3.10";
@@ -26,7 +26,7 @@ buildPythonPackage rec {
     owner = "youtype";
     repo = "mypy_boto3_builder";
     rev = "refs/tags/${version}";
-    hash = "sha256-G9Y37QC6Co4tUemtmOf5Dawt0VWopWT5/Np0J7sF10k=";
+    hash = "sha256-cAbDw/u0kLUEdmd/NBNDy/bt5Wno9QpmqpqicqZ/Q6g=";
   };
 
   nativeBuildInputs = [