diff --git a/api/api_v1/endpoints/query.py b/api/api_v1/endpoints/query.py
index abe1284..6cdc330 100644
--- a/api/api_v1/endpoints/query.py
+++ b/api/api_v1/endpoints/query.py
@@ -169,7 +169,7 @@ async def event_model(
                 q['avg'].append(int(df_group['values'].mean()))
                 for last_value in df['values'].values[::-1]:
                     if last_value > 0:
-                        q['last_value'] = last_value
+                        q['last_value'] = int(last_value)
                         break
 
         else:
@@ -186,7 +186,7 @@ async def event_model(
             q['values'].append(df['values'].to_list())
             for last_value in df['values'].values[::-1]:
                 if last_value > 0:
-                    q['last_value'] = last_value
+                    q['last_value'] = int(last_value)
                     break
             q['sum'].append(int(df['values'].sum()))
             q['avg'].append(round(df['values'].mean(), 2))