diff --git a/packages/serialization/json/kiota_serialization_json/json_serialization_writer.py b/packages/serialization/json/kiota_serialization_json/json_serialization_writer.py
index ecfdd79..912b64f 100644
--- a/packages/serialization/json/kiota_serialization_json/json_serialization_writer.py
+++ b/packages/serialization/json/kiota_serialization_json/json_serialization_writer.py
@@ -73,11 +73,11 @@ def write_float_value(self, key: Optional[str], value: Optional[float]) -> None:
             key (Optional[str]): The key to be used for the written value. May be null.
             value (Optional[float]): The float value to be written.
         """
-        if isinstance(value, float):
+        if isinstance(value, (float, int)):
             if key:
-                self.writer[key] = value
+                self.writer[key] = float(value)
             else:
-                self.value = value
+                self.value = float(value)
 
     def write_uuid_value(self, key: Optional[str], value: Optional[UUID]) -> None:
         """Writes the specified uuid value to the stream with an optional given key.
diff --git a/packages/serialization/json/tests/unit/test_json_serialization_writer.py b/packages/serialization/json/tests/unit/test_json_serialization_writer.py
index ad0bd2a..8168318 100644
--- a/packages/serialization/json/tests/unit/test_json_serialization_writer.py
+++ b/packages/serialization/json/tests/unit/test_json_serialization_writer.py
@@ -65,6 +65,14 @@ def test_write_float_value():
     assert content_string == '{"gpa": 3.2}'
 
 
+def test_write_float_value_with_int():
+    json_serialization_writer = JsonSerializationWriter()
+    json_serialization_writer.write_float_value("float", 3)
+    content = json_serialization_writer.get_serialized_content()
+    content_string = content.decode("utf-8")
+    assert content_string == '{"float": 3.0}'
+
+
 def test_write_uuid_value():
     json_serialization_writer = JsonSerializationWriter()
     json_serialization_writer.write_uuid_value("id", UUID("8f841f30-e6e3-439a-a812-ebd369559c36"))