diff --git a/pkgs/development/python-modules/yamlcore/default.nix b/pkgs/development/python-modules/yamlcore/default.nix
new file mode 100644
index 000000000000..ce1d590ac54e
--- /dev/null
+++ b/pkgs/development/python-modules/yamlcore/default.nix
@@ -0,0 +1,41 @@
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  setuptools,
+  pyyaml,
+  pytestCheckHook,
+}:
+
+buildPythonPackage (finalAttrs: {
+  pname = "yamlcore";
+  version = "0.0.4";
+  pyproject = true;
+
+  src = fetchFromGitHub {
+    owner = "perlpunk";
+    repo = "pyyaml-core";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-TBVNmuhBfEo9HmDkalnn6VDVHF+sh/MIZ8f46Zdyxw8=";
+  };
+
+  build-system = [
+    setuptools
+  ];
+
+  dependencies = [
+    pyyaml
+  ];
+
+  nativeCheckInputs = [ pytestCheckHook ];
+  enabledTestPaths = [ "tests/*.py" ];
+
+  pythonImportsCheck = [ "yamlcore" ];
+
+  meta = {
+    description = "YAML 1.2 Support for PyYAML";
+    homepage = "https://github.com/perlpunk/pyyaml-core";
+    license = lib.licenses.mit;
+    maintainers = with lib.maintainers; [ gonsolo ];
+  };
+})
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index f0854d9f1692..5f01d71ddea1 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -20914,6 +20914,8 @@ self: super: with self; {
 
   yamale = callPackage ../development/python-modules/yamale { };
 
+  yamlcore = callPackage ../development/python-modules/yamlcore { };
+
   yamlfix = callPackage ../development/python-modules/yamlfix { };
 
   yamllint = callPackage ../development/python-modules/yamllint { };