diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 1e1a695b8ff4..518d067bd6bc 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -406,8 +406,8 @@ rec {
       "sha256-HCSark4bQG673j5KZ1ZULwNiOBk/cichkGwuH1XNAPk=";
 
   mypy-boto3-discovery =
-    buildMypyBoto3Package "discovery" "1.35.0"
-      "sha256-kM9eR8OQ2la4tad+Q2PvO0auuEQNj0My5q4l8//9i+I=";
+    buildMypyBoto3Package "discovery" "1.35.66"
+      "sha256-qJiWEjsheL19hoIdrnDZVXOTIcK9SWo9+HKfQh6CZaw=";
 
   mypy-boto3-dlm =
     buildMypyBoto3Package "dlm" "1.35.0"