diff --git a/pkgs/development/python-modules/pydantic-core/default.nix b/pkgs/development/python-modules/pydantic-core/default.nix
index c59679649a88..6f580895976f 100644
--- a/pkgs/development/python-modules/pydantic-core/default.nix
+++ b/pkgs/development/python-modules/pydantic-core/default.nix
@@ -2,9 +2,7 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
-  cargo,
   rustPlatform,
-  rustc,
   typing-extensions,
   pytestCheckHook,
   hypothesis,
@@ -21,26 +19,31 @@
 let
   pydantic-core = buildPythonPackage rec {
     pname = "pydantic-core";
-    version = "2.41.5";
+    version = "2.46.4";
     pyproject = true;
 
     src = fetchFromGitHub {
       owner = "pydantic";
-      repo = "pydantic-core";
-      tag = "v${version}";
-      hash = "sha256-oIYHLSep8tWOXEaUybXG8Gv9WBoPGQ1Aj7QyqYksvMw=";
+      repo = "pydantic";
+      tag = "core-v${version}";
+      hash = "sha256-G4Xo6BF6tOn4g/qG3RNDP3/+lYnCOuw3AB1OrVOGcSA=";
     };
 
+    sourceRoot = "${src.name}/pydantic-core";
+
     cargoDeps = rustPlatform.fetchCargoVendor {
-      inherit pname version src;
-      hash = "sha256-Kvc0a34C6oGc9oS/iaPaazoVUWn5ABUgrmPa/YocV+Y=";
+      inherit
+        pname
+        version
+        src
+        sourceRoot
+        ;
+      hash = "sha256-5L317YTV7/Bc/YJLLzc745oJntiYkcZupdeUxiQwcOU=";
     };
 
     nativeBuildInputs = [
-      cargo
       rustPlatform.cargoSetupHook
       rustPlatform.maturinBuildHook
-      rustc
     ];
 
     dependencies = [ typing-extensions ];
@@ -64,9 +67,8 @@ let
     ];
 
     meta = {
-      changelog = "https://github.com/pydantic/pydantic-core/releases/tag/${src.tag}";
       description = "Core validation logic for pydantic written in rust";
-      homepage = "https://github.com/pydantic/pydantic-core";
+      homepage = "https://github.com/pydantic/pydantic/tree/main/pydantic-core";
       license = lib.licenses.mit;
       inherit (pydantic.meta) maintainers;
     };