diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index ea482612800f..d4ff5e713447 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -778,8 +778,8 @@ in
       "sha256-1kE3yNQBw8a1bYq3xMfAEfqW2p4FduGQ/uAJjI81xds=";
 
   mypy-boto3-lexv2-models =
-    buildMypyBoto3Package "lexv2-models" "1.42.65"
-      "sha256-dbemEfeaDlVDZXujl02F329tcJVmW+inkn8nQEZU83g=";
+    buildMypyBoto3Package "lexv2-models" "1.43.0"
+      "sha256-oCXwBVVHNBIlBTn99cxrpkj/nUWNk4NReXsLKRvlwRo=";
 
   mypy-boto3-lexv2-runtime =
     buildMypyBoto3Package "lexv2-runtime" "1.42.3"