diff --git a/dev_requirements/requirements-formatting.txt b/dev_requirements/requirements-formatting.txt
index 2e04017b..3707fc1a 100644
--- a/dev_requirements/requirements-formatting.txt
+++ b/dev_requirements/requirements-formatting.txt
@@ -13,7 +13,7 @@ isort==5.13.2
     # via -r dev_requirements/requirements-formatting.in
 mypy-extensions==1.0.0
     # via black
-packaging==24.0
+packaging==24.1
     # via black
 pathspec==0.12.1
     # via black
diff --git a/dev_requirements/requirements-test_packaging.txt b/dev_requirements/requirements-test_packaging.txt
index 251a9127..e9e28d0b 100644
--- a/dev_requirements/requirements-test_packaging.txt
+++ b/dev_requirements/requirements-test_packaging.txt
@@ -43,7 +43,7 @@ more-itertools==10.2.0
     #   jaraco-functools
 nh3==0.2.17
     # via readme-renderer
-packaging==24.0
+packaging==24.1
     # via build
 pkginfo==1.10.0
     # via twine
diff --git a/dev_requirements/requirements-tests.txt b/dev_requirements/requirements-tests.txt
index 7b319e67..6b096e2d 100644
--- a/dev_requirements/requirements-tests.txt
+++ b/dev_requirements/requirements-tests.txt
@@ -11,7 +11,7 @@ freezegun==1.5.1
     # via -r dev_requirements/requirements-tests.in
 iniconfig==2.0.0
     # via pytest
-packaging==24.0
+packaging==24.1
     # via pytest
 pluggy==1.5.0
     # via pytest
diff --git a/dev_requirements/requirements-type_check.txt b/dev_requirements/requirements-type_check.txt
index a19eb418..f7aed032 100644
--- a/dev_requirements/requirements-type_check.txt
+++ b/dev_requirements/requirements-type_check.txt
@@ -15,11 +15,11 @@ networkx==3.3
     # via networkx-stubs
 networkx-stubs==0.0.1
     # via -r requirements-type_check.in
-numpy==1.26.4
+numpy==2.0.0
     # via
     #   pandas
     #   pandas-stubs
-packaging==24.0
+packaging==24.1
     # via pytest
 pandas==2.2.2
     # via -r requirements-type_check.in
diff --git a/requirements.txt b/requirements.txt
index 91603f1e..15fe993a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,11 +26,11 @@ maus==0.5.0
     # via kohlrahbi (pyproject.toml)
 more-itertools==10.3.0
     # via maus
-numpy==1.26.4
+numpy==2.0.0
     # via pandas
 openpyxl==3.1.4
     # via kohlrahbi (pyproject.toml)
-packaging==24.0
+packaging==24.1
     # via marshmallow
 pandas==2.2.2
     # via kohlrahbi (pyproject.toml)
diff --git a/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py b/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py
index ab1a1c48..474c1a7e 100644
--- a/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py
+++ b/src/kohlrahbi/unfoldedahb/unfoldedahbtable.py
@@ -352,7 +352,7 @@ def convert_to_flat_ahb(self) -> FlatAnwendungshandbuch:
                     value_pool_entry=unfolded_ahb_line.code,
                     name=unfolded_ahb_line.beschreibung or unfolded_ahb_line.qualifier,
                     ahb_expression=unfolded_ahb_line.bedingung_ausdruck,
-                    section_name=unfolded_ahb_line.segment_name,
+                    section_name=unfolded_ahb_line.segment_name if unfolded_ahb_line.segment is not None else None,
                     index=unfolded_ahb_line.index,
                 )
             )
diff --git a/unittests/test_unfolded_ahb_table.py b/unittests/test_unfolded_ahb_table.py
index 47ae7cd6..2dee64e2 100644
--- a/unittests/test_unfolded_ahb_table.py
+++ b/unittests/test_unfolded_ahb_table.py
@@ -111,7 +111,7 @@ def test_convert_to_flat_ahb(self) -> None:
             lines=[
                 AhbLine(
                     guid=None,
-                    section_name="Ansprechpartner",
+                    section_name=None,
                     segment_group_key="SG3",
                     segment_code=None,
                     data_element=None,
@@ -122,7 +122,7 @@ def test_convert_to_flat_ahb(self) -> None:
                 ),
                 AhbLine(
                     guid=None,
-                    section_name="Ansprechpartner",
+                    section_name=None,
                     segment_group_key="SG3",
                     segment_code=None,
                     data_element=None,