diff --git a/jambo/parser/enum_type_parser.py b/jambo/parser/enum_type_parser.py
index 7a51afd..45480af 100644
--- a/jambo/parser/enum_type_parser.py
+++ b/jambo/parser/enum_type_parser.py
@@ -9,6 +9,16 @@ from enum import Enum
 class EnumTypeParser(GenericTypeParser):
     json_schema_type = "enum"
 
+    allowed_types: tuple[type] = (
+        str, 
+        int,
+        float,
+        bool,
+        list,
+        set,
+        type(None),
+    )
+
     def from_properties_impl(
         self, name, properties, **kwargs: Unpack[TypeParserOptions]
     ):
@@ -20,13 +30,20 @@ class EnumTypeParser(GenericTypeParser):
         if not isinstance(enum_values, list):
             raise ValueError(f"Enum type {name} must have 'enum' as a list of values.")
 
+        if any(
+            not isinstance(value, self.allowed_types) for value in enum_values
+        ):
+            raise ValueError(
+                f"Enum type {name} must have 'enum' values of allowed types: {self.allowed_types}."
+            )
+
         # Create a new Enum type dynamically
         enum_type = Enum(name, {str(value).upper(): value for value in enum_values})
         parsed_properties = self.mappings_properties_builder(properties, **kwargs)
 
         if (
             "default" in parsed_properties and parsed_properties["default"] is not None
-        ):
+        ):            
             parsed_properties["default"] = enum_type(parsed_properties["default"])
 
         return enum_type, parsed_properties
diff --git a/tests/parser/test_enum_type_parser.py b/tests/parser/test_enum_type_parser.py
index f0dcd7d..0f830e0 100644
--- a/tests/parser/test_enum_type_parser.py
+++ b/tests/parser/test_enum_type_parser.py
@@ -78,3 +78,13 @@ class TestEnumTypeParser(TestCase):
 
         with self.assertRaises(ValueError):
             parser.from_properties_impl("TestEnum", schema)
+
+    def test_enum_type_parser_throws_invalid_enum_value(self):
+        parser = EnumTypeParser()
+        
+        schema = {
+            "enum": ["value1", 42, dict()],
+        }
+
+        with self.assertRaises(ValueError):
+            parser.from_properties_impl("TestEnum", schema)