diff --git a/districtgenerator/data_handling/__init__.py b/districtgenerator/data_handling/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/districtgenerator/functions/SIA.py b/districtgenerator/functions/SIA.py
index dd45aeb1..22d15eae 100644
--- a/districtgenerator/functions/SIA.py
+++ b/districtgenerator/functions/SIA.py
@@ -2,10 +2,14 @@
 
 
 import pandas as pd
+import os
 
 def read_SIA_data():
 
-    data = pd.read_excel('../districtgenerator/data/SIA2024.xlsx', sheet_name='SIA2024', header=1)
+    current_dir = os.path.dirname(os.path.abspath(__file__))
+    data_path = os.path.join(current_dir, '..', 'data', 'SIA2024.xlsx')
+
+    data = pd.read_excel(data_path, sheet_name='SIA2024', header=1)
     df = pd.DataFrame(data, columns=['number', 'Zone_name_GER', 'T_summer', 'T_winter',	'area_room', 'dQ_persons_perA',
                                      't_fullLoad_persons', 'P_vent_perVh', 'P_vent_perA', 'W_per_person',
                                      'Q_domHotWater_perA_year',	'window_wall_ratio', 'wwr_faktor_windowframes',
diff --git a/setup.py b/setup.py
index 0e9c3a6b..d7e2d0a1 100644
--- a/setup.py
+++ b/setup.py
@@ -24,7 +24,10 @@
                      'pyproj~=3.7.0',
                      'openpyxl==3.1.5',
                      'seaborn==0.13.2',
-                     'OpenDHW>=0.2.2'
+                     'OpenDHW>=0.2.2',
+                     'reportlab>=4.4.6',
+                     'pydantic>=2.12.5',
+                     'pydantic-settings>=2.12.0',
                  ],
                  classifiers=("Programming Language :: Python :: 3", ),
                  )
\ No newline at end of file