diff --git a/generator/plugins/python/utils.py b/generator/plugins/python/utils.py
index 1700ede..9887230 100644
--- a/generator/plugins/python/utils.py
+++ b/generator/plugins/python/utils.py
@@ -23,13 +23,7 @@
 
 
 def customizations(spec: model.LSPModel) -> model.LSPModel:
-    # https://github.com/microsoft/lsprotocol/issues/344
-    # Allow CompletionItemKind to support custom values
-    for enum in spec.enumerations:
-        if enum.name == "CompletionItemKind":
-            enum.supportsCustomValues = True
-            break
-
+    # Add any required spec customizations here (ex. to work around spec bugs).
     return spec
 
 
diff --git a/packages/python/lsprotocol/_hooks.py b/packages/python/lsprotocol/_hooks.py
index be22ad7..fca4f5b 100644
--- a/packages/python/lsprotocol/_hooks.py
+++ b/packages/python/lsprotocol/_hooks.py
@@ -728,15 +728,6 @@ def _text_edit_hook(
             return converter.structure(object_, lsp_types.AnnotatedTextEdit)
         return converter.structure(object_, lsp_types.TextEdit)
 
-    def _completion_item_kind_hook(
-        object_: Any, _: type
-    ) -> Union[lsp_types.CompletionItemKind, OptionalPrimitive]:
-        if object_ is None:
-            return None
-        if isinstance(object_, (bool, int, str, float)):
-            return object_
-        return converter.structure(object_, lsp_types.CompletionItemKind)
-
     def _relative_pattern_hook(
         object_: Any, _: type
     ) -> Union[OptionalPrimitive, lsp_types.RelativePattern]:
@@ -1124,14 +1115,6 @@ def _text_document_content_hook(
             ],
             _text_edit_hook,
         ),
-        (
-            Optional[Union[lsp_types.CompletionItemKind, int]],
-            _completion_item_kind_hook,
-        ),
-        (
-            Union[lsp_types.CompletionItemKind, int],
-            _completion_item_kind_hook,
-        ),
         (
             Optional[Union[str, lsp_types.RelativePattern]],
             _relative_pattern_hook,
diff --git a/packages/python/lsprotocol/types.py b/packages/python/lsprotocol/types.py
index eb0e3ba..f093d59 100644
--- a/packages/python/lsprotocol/types.py
+++ b/packages/python/lsprotocol/types.py
@@ -3349,7 +3349,7 @@ class CompletionItem:
     @since 3.17.0"""
     # Since: 3.17.0
 
-    kind: Optional[Union[CompletionItemKind, int]] = attrs.field(default=None)
+    kind: Optional[CompletionItemKind] = attrs.field(default=None)
     """The kind of this completion item. Based of the kind
     an icon is chosen by the editor."""
 
@@ -9414,9 +9414,7 @@ class ClientCompletionItemOptionsKind:
 
     # Since: 3.18.0
 
-    value_set: Optional[Sequence[Union[CompletionItemKind, int]]] = attrs.field(
-        default=None
-    )
+    value_set: Optional[Sequence[CompletionItemKind]] = attrs.field(default=None)
     """The completion item kind values the client supports. When this
     property exists the client also guarantees that it will
     handle values outside its set gracefully and falls back