diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index f4f9da8c2751..ac5f38fa7b82 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1158,8 +1158,8 @@ in
       "sha256-4/Q39UsUYaluauoaLm6BOej+Krl2VbO1xKKo1orRIkI=";
 
   mypy-boto3-s3 =
-    buildMypyBoto3Package "s3" "1.42.85"
-      "sha256-QB46GErAlzvAi1Vsw7JlXY8uVlcLbth85jUhDfT2Zvs=";
+    buildMypyBoto3Package "s3" "1.42.94"
+      "sha256-HZLXIs8AVzuBEemEk6s4bgwbWaFTC3/uSvd/LZocR30=";
 
   mypy-boto3-s3control =
     buildMypyBoto3Package "s3control" "1.42.80"