diff --git a/pkgs/development/python-modules/mypy-boto3/default.nix b/pkgs/development/python-modules/mypy-boto3/default.nix
index d31b59a2ee9d..39e1d7d8e370 100644
--- a/pkgs/development/python-modules/mypy-boto3/default.nix
+++ b/pkgs/development/python-modules/mypy-boto3/default.nix
@@ -1322,8 +1322,8 @@ rec {
       "sha256-Cc3eTbro2qQ1x+r6Us0125nLZGIm28GXuvjLvx7OdVw=";
 
   mypy-boto3-stepfunctions =
-    buildMypyBoto3Package "stepfunctions" "1.39.0"
-      "sha256-aZbDf61cGeoeyNArz8Uweft/wqVfZpQySklFXIpf7R4=";
+    buildMypyBoto3Package "stepfunctions" "1.39.8"
+      "sha256-6eLSFjwfUE6BFYyYJekyj5P5MbwBqIQBMRym1pA67sk=";
 
   mypy-boto3-storagegateway =
     buildMypyBoto3Package "storagegateway" "1.39.0"