diff --git a/pkgs/by-name/ch/charmcraft/package.nix b/pkgs/by-name/ch/charmcraft/package.nix
index a2ea187240c8..2b0fa27da1b7 100644
--- a/pkgs/by-name/ch/charmcraft/package.nix
+++ b/pkgs/by-name/ch/charmcraft/package.nix
@@ -1,12 +1,34 @@
 {
   lib,
   git,
-  python3Packages,
+  python3,
   fetchFromGitHub,
   nix-update-script,
 }:
 
-python3Packages.buildPythonApplication rec {
+let
+  python = python3.override {
+    packageOverrides = self: super: {
+      pydantic-yaml = super.pydantic-yaml.overridePythonAttrs (old: rec {
+        version = "0.11.2";
+        src = fetchFromGitHub {
+          owner = "NowanIlfideme";
+          repo = "pydantic-yaml";
+          rev = "refs/tags/v${version}";
+          hash = "sha256-AeUyVav0/k4Fz69Qizn4hcJKoi/CDR9eUan/nJhWsDY=";
+        };
+        dependencies = with self; [
+          deprecated
+          importlib-metadata
+          pydantic_1
+          ruamel-yaml
+          types-deprecated
+        ];
+      });
+    };
+  };
+in
+python.pkgs.buildPythonApplication rec {
   pname = "charmcraft";
   version = "2.7.0";
 
@@ -27,7 +49,7 @@ python3Packages.buildPythonApplication rec {
       --replace-fail "distutils.util" "setuptools.dist"
   '';
 
-  propagatedBuildInputs = with python3Packages; [
+  dependencies = with python.pkgs; [
     craft-cli
     craft-parts
     craft-providers
@@ -47,12 +69,12 @@ python3Packages.buildPythonApplication rec {
     urllib3
   ];
 
-  nativeBuildInputs = with python3Packages; [ setuptools ];
+  build-system = with python.pkgs; [ setuptools ];
 
   pythonRelaxDeps = [ "urllib3" ];
 
   nativeCheckInputs =
-    with python3Packages;
+    with python.pkgs;
     [
       pyfakefs
       pytest-check