diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index d579055395fc..f8e922804aaa 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -845,8 +845,8 @@ in
       "sha256-kiKP12WkHvskEVNPRAUTRJqksrz6I5y31snfFpcz8HQ=";
 
   mypy-boto3-marketplace-catalog =
-    buildMypyBoto3Package "marketplace-catalog" "1.41.0"
-      "sha256-7qSbGMs4YI04zFpoTG0OGfVcAtHm4DsNyRXIILyqOa0=";
+    buildMypyBoto3Package "marketplace-catalog" "1.42.3"
+      "sha256-+7BvckGEN74BosIfQguWMCE0chJlp4bOVSXpIqqnR4w=";
 
   mypy-boto3-marketplace-entitlement =
     buildMypyBoto3Package "marketplace-entitlement" "1.41.2"