diff --git a/pkgs/development/python-modules/iamdata/default.nix b/pkgs/development/python-modules/iamdata/default.nix
index f94cd8aa7e1e..e2a88bdd2ddd 100644
--- a/pkgs/development/python-modules/iamdata/default.nix
+++ b/pkgs/development/python-modules/iamdata/default.nix
@@ -8,14 +8,14 @@
 
 buildPythonPackage rec {
   pname = "iamdata";
-  version = "0.1.202510101";
+  version = "0.1.202510121";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "cloud-copilot";
     repo = "iam-data-python";
     tag = "v${version}";
-    hash = "sha256-/w2DDDjrEGwskvtP0v3w+xKNDCoJpeVQpHS38jFnfE8=";
+    hash = "sha256-JmVT8miQXDV9QZCj3IhYNFY5Bdn8Du13vM6jtiENYO4=";
   };
 
   build-system = [ hatchling ];