diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index 9ad5d7ef1296..dd816979f0e0 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -961,8 +961,8 @@ in
       "sha256-gs9eGyRaZN7Fsl0D5fSqtTiYZ+Exp0s8QW/X8ZR7guA=";
 
   mypy-boto3-oam =
-    buildMypyBoto3Package "oam" "1.40.0"
-      "sha256-Db3tb9qhUNtdqKVVgq2Z80wVWCA9g7B8YpqR1FmgleQ=";
+    buildMypyBoto3Package "oam" "1.40.57"
+      "sha256-jobSOTxwJ6mzhr4O+opLrCvGuq4MMRe+zjhHWpq4JsA=";
 
   mypy-boto3-omics =
     buildMypyBoto3Package "omics" "1.40.20"