diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index fc6cdbc49d2c..e3319aa23dec 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1158,8 +1158,8 @@ in
       "sha256-8or7NMBfeq9jZRzAu0Q1ShoTXTm8GCXR4kov0kaJCcE=";
 
   mypy-boto3-s3 =
-    buildMypyBoto3Package "s3" "1.43.50"
-      "sha256-IGgX0i6AeV2jXa9wQiXy4qK1YfpL+MYJ8hULBIAK6BE=";
+    buildMypyBoto3Package "s3" "1.43.66"
+      "sha256-svdHY+Nzs/PWTPzS8AzbHBDIpM7+bUzbwe1Kat4IXAc=";
 
   mypy-boto3-s3control =
     buildMypyBoto3Package "s3control" "1.43.17"