diff --git a/docs/requirements.txt b/docs/requirements.txt
index 85f776bde..d6c7207a5 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -14,8 +14,6 @@ certifi==2023.7.22
     # via requests
 charset-normalizer==2.1.0
     # via requests
-colorama==0.4.6
-    # via sphinx
 docutils==0.18.1
     # via
     #   sphinx
@@ -25,32 +23,32 @@ idna==3.3
 imagesize==1.4.1
     # via sphinx
 iso3166==2.1.1
-    # via -r .\docs\requirements.in
+    # via -r docs/requirements.in
 jinja2==3.1.2
     # via sphinx
 markupsafe==2.1.3
     # via jinja2
 networkx==3.1
-    # via -r .\docs\requirements.in
+    # via -r docs/requirements.in
 packaging==23.1
     # via sphinx
-pydantic==2.3.0
-    # via -r .\docs\requirements.in
-pydantic-core==2.6.3
+pydantic==2.4.0
+    # via -r docs/requirements.in
+pydantic-core==2.10.0
     # via pydantic
 pygments==2.16.1
     # via sphinx
 pyhumps==3.8.0
-    # via -r .\docs\requirements.in
+    # via -r docs/requirements.in
 requests==2.31.0
     # via
-    #   -r .\docs\requirements.in
+    #   -r docs/requirements.in
     #   sphinx
 snowballstemmer==2.2.0
     # via sphinx
 sphinx==7.2.6
     # via
-    #   -r .\docs\requirements.in
+    #   -r docs/requirements.in
     #   sphinx-rtd-theme
     #   sphinxcontrib-applehelp
     #   sphinxcontrib-devhelp
@@ -59,7 +57,7 @@ sphinx==7.2.6
     #   sphinxcontrib-qthelp
     #   sphinxcontrib-serializinghtml
 sphinx-rtd-theme==1.3.0
-    # via -r .\docs\requirements.in
+    # via -r docs/requirements.in
 sphinxcontrib-applehelp==1.0.7
     # via sphinx
 sphinxcontrib-devhelp==1.0.5
@@ -75,7 +73,7 @@ sphinxcontrib-qthelp==1.0.6
 sphinxcontrib-serializinghtml==1.1.9
     # via sphinx
 typeguard==4.1.5
-    # via -r .\docs\requirements.in
+    # via -r docs/requirements.in
 typing-extensions==4.8.0
     # via
     #   pydantic
diff --git a/requirements.txt b/requirements.txt
index 37bfa46cd..4cceffd5a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,9 +8,9 @@ annotated-types==0.5.0
     # via pydantic
 iso3166==2.1.1
     # via -r requirements.in
-pydantic==2.3.0
+pydantic==2.4.0
     # via -r requirements.in
-pydantic-core==2.6.3
+pydantic-core==2.10.0
     # via pydantic
 pyhumps==3.8.0
     # via -r requirements.in
diff --git a/src/bo4e/com/kostenposition.py b/src/bo4e/com/kostenposition.py
index 13b25a3f9..031caf02c 100644
--- a/src/bo4e/com/kostenposition.py
+++ b/src/bo4e/com/kostenposition.py
@@ -64,7 +64,7 @@ class Kostenposition(COM):
 
     @staticmethod
     def _get_inclusive_start(values: ValidationInfo) -> Optional[datetime]:
-        return values.data["von"]  # type:ignore[attr-defined]
+        return values.data["von"]
 
     # @staticmethod
     # def _get_exclusive_end(values) -> Optional[datetime]:
diff --git a/src/bo4e/com/rechnungsposition.py b/src/bo4e/com/rechnungsposition.py
index 5b40a6c3e..3527512e7 100644
--- a/src/bo4e/com/rechnungsposition.py
+++ b/src/bo4e/com/rechnungsposition.py
@@ -84,7 +84,7 @@ class Rechnungsposition(COM):
     @staticmethod
     def _get_inclusive_start(values: ValidationInfo) -> datetime:
         """return the inclusive start (used in the validator)"""
-        return values.data["lieferung_von"]  # type:ignore[attr-defined]
+        return values.data["lieferung_von"]
 
     # def _get_exclusive_end(self) -> datetime:
     #     """return the exclusive end (used in the validator)"""
diff --git a/src/bo4e/com/verbrauch.py b/src/bo4e/com/verbrauch.py
index 0b72f38b2..1e3044e15 100644
--- a/src/bo4e/com/verbrauch.py
+++ b/src/bo4e/com/verbrauch.py
@@ -49,7 +49,7 @@ class Verbrauch(COM):
     @staticmethod
     def _get_inclusive_start(values: ValidationInfo) -> Optional[datetime]:
         """a method for easier usage of the check_bis_is_later_than_von validator"""
-        return values.data["startdatum"]  # type:ignore[attr-defined]
+        return values.data["startdatum"]
 
     # def _get_exclusive_end(self) -> Optional[datetime]:
     #     """a method for easier usage of the check_bis_is_later_than_von validator"""
diff --git a/src/bo4e/com/zeitreihenwert.py b/src/bo4e/com/zeitreihenwert.py
index 1454eca24..d454ab9ee 100644
--- a/src/bo4e/com/zeitreihenwert.py
+++ b/src/bo4e/com/zeitreihenwert.py
@@ -34,7 +34,7 @@ class Zeitreihenwert(Zeitreihenwertkompakt):
     @staticmethod
     def _get_inclusive_start(values: ValidationInfo) -> datetime:
         """return the inclusive start (used in the validator)"""
-        return values.data["datum_uhrzeit_von"]  # type:ignore[attr-defined]
+        return values.data["datum_uhrzeit_von"]
 
     # def _get_exclusive_end(self) -> datetime:
     #     """return the exclusive end (used in the validator)"""
diff --git a/src/bo4e/validators.py b/src/bo4e/validators.py
index 14fe3e9b2..97236549a 100644
--- a/src/bo4e/validators.py
+++ b/src/bo4e/validators.py
@@ -64,7 +64,7 @@ def einheit_only_for_abschlagstyp_absolut(  # type: ignore[no-untyped-def]
     Check that einheit is only there if abschlagstyp is absolut.
     Currently, (2021-12-15) only used in COM AufAbschlag.
     """
-    values = validation_info.data  # type:ignore[attr-defined]
+    values = validation_info.data
     if value and (not values["auf_abschlagstyp"] or (values["auf_abschlagstyp"] != AufAbschlagstyp.ABSOLUT)):
         raise ValueError("Only state einheit if auf_abschlagstyp is absolute.")
     return value