diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 1397005fed84..c86b1b3362b2 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -379,8 +379,8 @@ in
       "sha256-MExczpvtitz7h8p+wS8mKCToOQiiQwcOl3jzbKHbVzI=";
 
   mypy-boto3-datasync =
-    buildMypyBoto3Package "datasync" "1.42.67"
-      "sha256-Ze0zS8N29sfcazIJHMKhfn6RWatI3L0xIXk+7esQOPo=";
+    buildMypyBoto3Package "datasync" "1.42.85"
+      "sha256-hzPwLZfupdoW57qSucoU9QCzQbeeHmmBnRRjrf8Szhk=";
 
   mypy-boto3-dax =
     buildMypyBoto3Package "dax" "1.42.3"