diff --git a/src/langtrace_python_sdk/instrumentation/mistral/patch.py b/src/langtrace_python_sdk/instrumentation/mistral/patch.py
index f9831fea..448561a7 100644
--- a/src/langtrace_python_sdk/instrumentation/mistral/patch.py
+++ b/src/langtrace_python_sdk/instrumentation/mistral/patch.py
@@ -46,7 +46,7 @@
 
 
 def chat_complete(original_method, version, tracer, is_async=False, is_streaming=False):
-        
+
     def traced_method(wrapped, instance, args, kwargs):
         service_provider = SERVICE_PROVIDERS["MISTRAL"]
         llm_prompts = []
@@ -65,7 +65,6 @@ def traced_method(wrapped, instance, args, kwargs):
 
         attributes = LLMSpanAttributes(**span_attributes)
 
-
         span = tracer.start_span(
             name=get_span_name(APIS[api]["METHOD"]),
             kind=SpanKind.CLIENT,
@@ -87,7 +86,6 @@ def traced_method(wrapped, instance, args, kwargs):
                 span.set_status(StatusCode.OK)
                 span.end()
                 return result
-                
 
         except Exception as error:
             span.record_exception(error)
@@ -186,7 +184,6 @@ def _set_response_attributes(span, kwargs, result):
             for choice in result.choices
         ]
         set_event_completion(span, responses)
-
     # Get the usage
     if hasattr(result, "usage") and result.usage is not None:
-        set_usage_attributes(span, result.usage)
+        set_usage_attributes(span, dict(result.usage))
diff --git a/src/langtrace_python_sdk/version.py b/src/langtrace_python_sdk/version.py
index 158a549e..80771050 100644
--- a/src/langtrace_python_sdk/version.py
+++ b/src/langtrace_python_sdk/version.py
@@ -1 +1 @@
-__version__ = "3.3.8"
+__version__ = "3.3.9"