diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 0eb4406728e2..f1e753c60dbf 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1086,8 +1086,8 @@ rec {
       "sha256-12AIEWhTwK3YdCUhImozJeO83Ye9G2D1VaKMeqbV/pE=";
 
   mypy-boto3-rds =
-    buildMypyBoto3Package "rds" "1.35.64"
-      "sha256-6B3bAEd3qBDsfi6K0wSjvERi+cacRHpmRWBe9nDdzLE=";
+    buildMypyBoto3Package "rds" "1.35.66"
+      "sha256-CFDLW93aGFPGukS7jcG/DTA+pHKfjN+YLQ5NkfCKstk=";
 
   mypy-boto3-rds-data =
     buildMypyBoto3Package "rds-data" "1.35.64"