diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index af5307f7..81bd1f0e 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.44.0
+current_version = 0.45.0
 commit = True
 tag = False
 message = chore: Bump version from {current_version} to {new_version}
diff --git a/HISTORY.md b/HISTORY.md
index 56d05788..b4eb7b71 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,5 +1,13 @@
 # History
 
+## 0.45.0 (2025-03-24)
+
+- (PR #784, 2025-03-13) chore(deps): Bump the development-dependencies group with 8 updates
+- (PR #773, 2025-03-13) chore(deps): Bump django-filter from 24.3 to 25.1
+- (PR #774, 2025-03-17) chore(deps): Bump marshmallow from 3.22.0 to 3.26.1
+- (PR #776, 2025-03-17) chore(deps): Bump importlib-metadata from 8.5.0 to 8.6.1
+- (PR #787, 2025-03-24) Require Python ≥3.9
+
 ## 0.44.0 (2025-03-13)
 
 - (PR #783, 2025-03-13) deps: Update `packaging` from 24.1 to 24.2
diff --git a/pyproject.toml b/pyproject.toml
index 0e4af765..a79bfbff 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ dependencies = [
   "signxml>=4.0.0",
   "typing-extensions>=4.0.1",
 ]
-requires-python = ">=3.8, <3.11"
+requires-python = ">=3.9, <3.11"
 authors = [
   {name = "Fyntex TI SpA", email = "no-reply@fyntex.ai"},
 ]
diff --git a/requirements-dev.in b/requirements-dev.in
index 5e3cdbea..c1035d9c 100644
--- a/requirements-dev.in
+++ b/requirements-dev.in
@@ -4,18 +4,18 @@
 
 -c requirements.txt
 
-black==24.8.0
+black==25.1.0
 build==1.2.2.post1
 bumpversion==0.5.3
-coverage==7.6.1
-flake8==7.1.1
-isort==5.13.2
-mypy==1.14.1
+coverage==7.6.12
+flake8==7.1.2
+isort==6.0.1
+mypy==1.15.0
 pip-tools==7.4.1
-tox==4.23.2
+tox==4.24.2
 twine==6.1.0
 types-jsonschema==4.23.0.20241208
-types-lxml==2024.12.13
+types-lxml==2025.3.4
 types-pyOpenSSL==24.1.0.20240722
-types-pytz==2024.2.0.20241221
+types-pytz==2025.1.0.20250204
 wheel==0.45.1
diff --git a/requirements-dev.txt b/requirements-dev.txt
index e559bfc0..f35a5a5f 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -8,7 +8,9 @@ attrs==23.2.0
     # via
     #   -c requirements.txt
     #   referencing
-black==24.8.0
+beautifulsoup4==4.13.3
+    # via types-lxml
+black==25.1.0
     # via -r requirements-dev.in
 bleach==5.0.1
     # via readme-renderer
@@ -18,7 +20,7 @@ build==1.2.2.post1
     #   pip-tools
 bumpversion==0.5.3
     # via -r requirements-dev.in
-cachetools==5.5.0
+cachetools==5.5.2
     # via tox
 certifi==2024.7.4
     # via
@@ -38,7 +40,7 @@ click==8.0.3
     #   pip-tools
 colorama==0.4.6
     # via tox
-coverage==7.6.1
+coverage==7.6.12
     # via -r requirements-dev.in
 cryptography==44.0.1
     # via
@@ -55,18 +57,18 @@ filelock==3.16.1
     # via
     #   tox
     #   virtualenv
-flake8==7.1.1
+flake8==7.1.2
     # via -r requirements-dev.in
 id==1.5.0
     # via twine
 idna==3.7
     # via requests
-importlib-metadata==8.5.0
+importlib-metadata==8.6.1
     # via
     #   -c requirements.txt
     #   build
     #   twine
-isort==5.13.2
+isort==6.0.1
     # via -r requirements-dev.in
 jeepney==0.8.0
     # via
@@ -80,7 +82,7 @@ mccabe==0.7.0
     # via flake8
 mdurl==0.1.2
     # via markdown-it-py
-mypy==1.14.1
+mypy==1.15.0
     # via -r requirements-dev.in
 mypy-extensions==1.0.0
     # via
@@ -148,7 +150,9 @@ secretstorage==3.3.3
     # via keyring
 six==1.16.0
     # via bleach
-tomli==2.0.1
+soupsieve==2.6
+    # via beautifulsoup4
+tomli==2.2.1
     # via
     #   black
     #   build
@@ -157,29 +161,28 @@ tomli==2.0.1
     #   pyproject-api
     #   pyproject-hooks
     #   tox
-tox==4.23.2
+tox==4.24.2
     # via -r requirements-dev.in
 twine==6.1.0
     # via -r requirements-dev.in
-types-beautifulsoup4==4.12.0.20240907
-    # via types-lxml
 types-cffi==1.16.0.20240331
     # via types-pyopenssl
-types-html5lib==1.1.11.20240806
-    # via types-beautifulsoup4
+types-html5lib==1.1.11.20241018
+    # via types-lxml
 types-jsonschema==4.23.0.20241208
     # via -r requirements-dev.in
-types-lxml==2024.12.13
+types-lxml==2025.3.4
     # via -r requirements-dev.in
 types-pyopenssl==24.1.0.20240722
     # via -r requirements-dev.in
-types-pytz==2024.2.0.20241221
+types-pytz==2025.1.0.20250204
     # via -r requirements-dev.in
 types-setuptools==75.3.0.20241112
     # via types-cffi
 typing-extensions==4.12.2
     # via
     #   -c requirements.txt
+    #   beautifulsoup4
     #   black
     #   mypy
     #   tox
@@ -188,7 +191,7 @@ urllib3==1.26.19
     # via
     #   requests
     #   twine
-virtualenv==20.26.6
+virtualenv==20.29.3
     # via tox
 webencodings==0.5.1
     # via bleach
diff --git a/requirements.in b/requirements.in
index 4045e05a..a8c7e54c 100644
--- a/requirements.in
+++ b/requirements.in
@@ -11,10 +11,10 @@ defusedxml==0.7.1
 django-filter>=24.2
 Django>=4.2
 djangorestframework>=3.10.3,<3.16
-importlib-metadata==8.5.0
+importlib-metadata==8.6.1
 jsonschema==4.23.0
 lxml==5.3.1
-marshmallow==3.22.0
+marshmallow==3.26.1
 pydantic==2.10.6
 pyOpenSSL==25.0.0
 pytz==2025.1
diff --git a/requirements.txt b/requirements.txt
index c4594dd5..72df99c2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,11 +28,11 @@ django==4.2.20
     #   -r requirements.in
     #   django-filter
     #   djangorestframework
-django-filter==24.3
+django-filter==25.1
     # via -r requirements.in
 djangorestframework==3.15.2
     # via -r requirements.in
-importlib-metadata==8.5.0
+importlib-metadata==8.6.1
     # via -r requirements.in
 jsonschema==4.23.0
     # via -r requirements.in
@@ -42,7 +42,7 @@ lxml==5.3.1
     # via
     #   -r requirements.in
     #   signxml
-marshmallow==3.22.0
+marshmallow==3.26.1
     # via -r requirements.in
 packaging==24.2
     # via marshmallow
diff --git a/src/cl_sii/__init__.py b/src/cl_sii/__init__.py
index 262f0c5e..f87c773b 100644
--- a/src/cl_sii/__init__.py
+++ b/src/cl_sii/__init__.py
@@ -4,4 +4,4 @@
 
 """
 
-__version__ = '0.44.0'
+__version__ = '0.45.0'
diff --git a/src/cl_sii/dte/data_models.py b/src/cl_sii/dte/data_models.py
index aca2aaa8..7abdf147 100644
--- a/src/cl_sii/dte/data_models.py
+++ b/src/cl_sii/dte/data_models.py
@@ -111,7 +111,7 @@ def validate_non_empty_bytes(value: bytes) -> None:
 
 
 def is_input_trusted_according_to_validation_context(
-    validation_context: Optional[Mapping[str, object]]
+    validation_context: Optional[Mapping[str, object]],
 ) -> bool:
     """
     Return whether the input data is trusted according to the validation context.
diff --git a/src/cl_sii/libs/mm_utils.py b/src/cl_sii/libs/mm_utils.py
index 67c3126a..13eb98ab 100644
--- a/src/cl_sii/libs/mm_utils.py
+++ b/src/cl_sii/libs/mm_utils.py
@@ -96,7 +96,9 @@ def __init__(self, format: Optional[str] = None, **kwargs: Any) -> None:
         # TODO: for 'marshmallow 3', rename 'dateformat' to 'datetimeformat'.
         self.dateformat = format
 
-    def _bind_to_schema(self, field_name: str, schema: marshmallow.Schema) -> None:
+    def _bind_to_schema(
+        self, field_name: str, schema: marshmallow.Schema | marshmallow.Field
+    ) -> None:
         super()._bind_to_schema(field_name, schema)
         self.dateformat = self.dateformat or schema.opts.dateformat