diff --git a/pkgs/development/python-modules/iamdata/default.nix b/pkgs/development/python-modules/iamdata/default.nix
index 7c7684cd07d1..fc0f452219d5 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 = "0.1.202512181";
+  version = "0.1.202512191";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "cloud-copilot";
     repo = "iam-data-python";
     tag = "v${version}";
-    hash = "sha256-DcDoFNfPZoZnBilBhfdoV0SnmLDyL0gmF+3joWLoZFI=";
+    hash = "sha256-HW6xdGLAVuziYwR5NWkjfc4S0LPJ5wjIhnnUtvrrtwk=";
   };
 
   __darwinAllowLocalNetworking = true;