diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index cc6482ae29e9..468e32b23d1e 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -825,8 +825,8 @@ in
       "sha256-MlMkIgzc2D3i5xAPdk+th0e9AYrvRxGwzl4zwEwy4xw=";
 
   mypy-boto3-m2 =
-    buildMypyBoto3Package "m2" "1.41.0"
-      "sha256-JpBd1G28XCMH4SIVIe2IlMteHUoIgGHPC3Mk0vTQ27Q=";
+    buildMypyBoto3Package "m2" "1.42.3"
+      "sha256-Uouysx/L59B/V4dG9GWlGulqCwXTQYTTsdyXzrxFSXE=";
 
   mypy-boto3-machinelearning =
     buildMypyBoto3Package "machinelearning" "1.41.0"