diff --git a/pkgs/development/python-modules/iminuit/default.nix b/pkgs/development/python-modules/iminuit/default.nix
index 37703a3150f4..77c2b8603a70 100644
--- a/pkgs/development/python-modules/iminuit/default.nix
+++ b/pkgs/development/python-modules/iminuit/default.nix
@@ -2,12 +2,12 @@
 
 buildPythonPackage rec {
   pname = "iminuit";
-  version = "2.11.2";
+  version = "2.12.0";
   disabled = !isPy3k;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "sha256-jK55F8otIsaR4AeSv7u4ErhKxcdRIOsq6Hn7StpB7mw=";
+    sha256 = "sha256-zQ48t1EwLAZphOqzBhLF0kGaVDF/6+UbUL4fohr8Uak=";
   };
 
   nativeBuildInputs = [ cmake ];