diff --git a/app.py b/app.py
index ef4c72f..fe7b619 100644
--- a/app.py
+++ b/app.py
@@ -60,7 +60,7 @@ def insert_alumno_extraccion(datos_html: str, materias_html: str, username_integ
 
         insert_query = """
             INSERT INTO public.alumno_extraccion ("Usuario_claveULSA", datos_html, materias_html, historial_html, materias_actuales_html, updated_at) 
-            VALUES (%s, TRIM(%s), TRIM(%s), TRIM(%s)::JSONB, TRIM(%s), NOW())
+            VALUES (%s, TRIM(%s), TRIM(%s), TRIM(%s)::JSONB, TRIM(%s)::JSONB, NOW())
             ON CONFLICT ("Usuario_claveULSA") DO UPDATE 
             SET datos_html = EXCLUDED.datos_html, 
                 materias_actuales_html = EXCLUDED.materias_actuales_html,
@@ -162,6 +162,9 @@ def extract(driver, username: str, password: str):
         historial_html_io = StringIO(f"<table>{historial_html}</table>")
         materias_html_io = StringIO(f"<table>{materias_actuales_html}</table>")
         df = pd.read_html(historial_html_io)[0]
+        df_materias = pd.read_html(materias_html_io)[0]
+
+        df_materias = df_materias.drop(columns=['Unnamed: 0', 'Seleccionar'])
         
         json_result = None
         json_materias = None
@@ -170,7 +173,6 @@ def extract(driver, username: str, password: str):
             df['PERIODO'] = df['PERIODO'].apply(lambda x: str(x).replace('.0', '') if isinstance(x, (float, int)) else x)
             json_result = df[df['GRUPO'] != 'Promedio:'].to_json(orient='records')
         
-        df_materias = pd.read_html(materias_html_io)[0]
         json_materias = df_materias.to_json(orient='records')