diff --git a/release_scope/_gitlab.py b/release_scope/_gitlab.py
index 65585d2..98028e3 100644
--- a/release_scope/_gitlab.py
+++ b/release_scope/_gitlab.py
@@ -1,5 +1,5 @@
 import dataclasses
-import datetime
+import datetime as dt
 import math
 import typing
 from urllib.parse import quote, unquote
@@ -54,7 +54,7 @@ class Commit(pydantic.BaseModel):
     title: str
     message: str = ""
     author_name: str | None = None
-    committed_date: datetime.datetime
+    committed_date: dt.datetime
     web_url: str | None = None
 
 
@@ -228,7 +228,7 @@ def list_first_parent_commits(
         )
 
     def list_merged_merge_requests(
-        self, project_id: int, *, target_branch: str, updated_after: datetime.datetime
+        self, project_id: int, *, target_branch: str, updated_after: dt.datetime
     ) -> list[MergeRequest]:
         merge_requests, _ = self._pages(
             f"{_API}/projects/{project_id}/merge_requests",
@@ -252,7 +252,7 @@ def commit_merge_requests(self, project_id: int, sha: str) -> list[MergeRequest]
         )
         return merge_requests
 
-    def list_push_pipelines(self, project_id: int, *, ref: str, updated_after: datetime.datetime) -> list[Pipeline]:
+    def list_push_pipelines(self, project_id: int, *, ref: str, updated_after: dt.datetime) -> list[Pipeline]:
         pipelines, _ = self._pages(
             f"{_API}/projects/{project_id}/pipelines",
             {"ref": ref, "source": "push", "updated_after": updated_after.isoformat()},
diff --git a/release_scope/_report.py b/release_scope/_report.py
index 60fdbaf..18abbf6 100644
--- a/release_scope/_report.py
+++ b/release_scope/_report.py
@@ -1,4 +1,4 @@
-import datetime
+import datetime as dt
 import typing
 
 import pydantic
@@ -45,7 +45,7 @@ class CommitRef(pydantic.BaseModel):
     title: str
     url: str | None
     author: str | None
-    committed_at: datetime.datetime
+    committed_at: dt.datetime
 
 
 class JiraKeyRef(pydantic.BaseModel):
@@ -127,7 +127,7 @@ class JiraState(pydantic.BaseModel):
 
 class Report(pydantic.BaseModel):
     schema_version: typing.Literal[3] = SCHEMA_VERSION
-    collected_at: datetime.datetime
+    collected_at: dt.datetime
     production_environment: str
     services: list[Service]
     jira: JiraState | None = None
diff --git a/release_scope/_use_case.py b/release_scope/_use_case.py
index e32e80b..b0bd038 100644
--- a/release_scope/_use_case.py
+++ b/release_scope/_use_case.py
@@ -1,6 +1,6 @@
 import collections.abc
 import dataclasses
-import datetime
+import datetime as dt
 import http
 import typing
 from urllib.parse import quote
@@ -122,7 +122,7 @@ def __call__(
             for project in self._resolve_projects(groups=groups, projects=projects, include_subgroups=include_subgroups)
         ]
         return Report(
-            collected_at=datetime.datetime.now(datetime.UTC),
+            collected_at=dt.datetime.now(dt.UTC),
             production_environment=self.settings.production_environment,
             services=services,
             jira=self._read_issues(self.jira, _row_keys(services)) if self.jira else None,
@@ -148,7 +148,7 @@ def for_issues(self, *, keys: collections.abc.Sequence[str], cache: Cache) -> Re
             state.missing.extend(row_state.missing)
             state.error = row_state.error
         return Report(
-            collected_at=datetime.datetime.now(datetime.UTC),
+            collected_at=dt.datetime.now(dt.UTC),
             production_environment=self.settings.production_environment,
             services=services,
             jira=state,
@@ -380,7 +380,7 @@ def _release(self, project: Project, target: _LinkTarget, walk: _Walk, index: in
         )
 
     def _commit_merge_requests(
-        self, project: Project, default_branch: str, commits: list[Commit], since: datetime.datetime, cache: Cache
+        self, project: Project, default_branch: str, commits: list[Commit], since: dt.datetime, cache: Cache
     ) -> dict[str, list[MergeRequest]]:
         merged: typing.Final = self.api.list_merged_merge_requests(
             project.id, target_branch=default_branch, updated_after=since