diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index adbcc5145a2e..468239a64e40 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -403,8 +403,8 @@ in
       "sha256-qoADzGwSCK2RXSaZKirR5g8SQBmDUuQtUGRdCv69Irw=";
 
   mypy-boto3-discovery =
-    buildMypyBoto3Package "discovery" "1.42.3"
-      "sha256-rZxsnERZZWod9U+7IyPVFYSncmbpNwtzoGQopSkb9sk=";
+    buildMypyBoto3Package "discovery" "1.43.0"
+      "sha256-+JRa3rx25BROhc3oXbMEW44C6aBj5hK1upz8kqU4MAY=";
 
   mypy-boto3-dlm =
     buildMypyBoto3Package "dlm" "1.42.84"