diff --git a/frontik/dependency_manager/__init__.py b/frontik/dependency_manager/__init__.py
index 26f7f646a..62dd4e7c6 100644
--- a/frontik/dependency_manager/__init__.py
+++ b/frontik/dependency_manager/__init__.py
@@ -2,10 +2,10 @@
 
 from typing import TYPE_CHECKING, Any
 
-from frontik.preprocessors import DependencyGroupMarker, Preprocessor
 from frontik.dependency_manager.dependencies import DependencyMarker
+from frontik.dependency_manager.graph_builder import build_sub_graph, get_dependency_graph
 from frontik.dependency_manager.graph_runner import execute_graph
-from frontik.dependency_manager.graph_builder import get_dependency_graph, build_sub_graph
+from frontik.preprocessors import DependencyGroupMarker, Preprocessor
 
 if TYPE_CHECKING:
     from collections.abc import Callable
diff --git a/frontik/dependency_manager/dependencies.py b/frontik/dependency_manager/dependencies.py
index 6e78df3a7..fdd6ce56e 100644
--- a/frontik/dependency_manager/dependencies.py
+++ b/frontik/dependency_manager/dependencies.py
@@ -2,10 +2,13 @@
 
 import asyncio
 from graphlib import TopologicalSorter
-from frontik.preprocessors import make_full_name
-from collections.abc import Callable
 from typing import TYPE_CHECKING
+
+from frontik.preprocessors import make_full_name
+
 if TYPE_CHECKING:
+    from collections.abc import Callable
+
     from frontik.handler import PageHandler
 
 
diff --git a/frontik/dependency_manager/graph_builder.py b/frontik/dependency_manager/graph_builder.py
index 7559fe5b6..3959ef6a8 100644
--- a/frontik/dependency_manager/graph_builder.py
+++ b/frontik/dependency_manager/graph_builder.py
@@ -5,17 +5,22 @@
 from itertools import chain
 from typing import TYPE_CHECKING, Any
 
+from frontik.dependency_manager.dependencies import (
+    Dependency,
+    DependencyGraph,
+    DependencyMarker,
+    get_handler,
+    make_stub_dependency,
+)
 from frontik.preprocessors import (
     Preprocessor,
     get_all_preprocessors_functions,
     get_simple_preprocessors_functions,
     make_full_name,
 )
-from frontik.dependency_manager.dependencies import (DependencyGraph, Dependency, DependencyMarker,
-                                                     make_stub_dependency, get_handler)
 
 if TYPE_CHECKING:
-    from collections.abc import Callable
+    from collections.abc import Callable, Iterable
 
     from frontik.handler import PageHandler
 
@@ -79,14 +84,19 @@ def get_dependency_graph(page_method_func: Callable, handler_cls: type) -> Depen
     return deepcopy(meta_graph)
 
 
-def _register_side_dependencies(graph, root_dep, side_dependencies, deep_scan):
+def _register_side_dependencies(
+    graph: DependencyGraph,
+    root_dep: Dependency,
+    side_dependencies: Iterable,
+    deep_scan: bool,
+) -> None:
     for function_or_preprocessor in side_dependencies:
         dependency = _make_dependency_for_graph(graph, function_or_preprocessor, deep_scan=deep_scan)
         if deep_scan:
             _register_sub_dependency(graph, root_dep, dependency, add_to_args=False)
 
 
-def _register_async_dependencies(graph, async_dependencies):
+def _register_async_dependencies(graph: DependencyGraph, async_dependencies: Iterable) -> None:
     root_dep = make_stub_dependency()
     for dependency_function in async_dependencies:
         dependency = _make_dependency_for_graph(graph, dependency_function, deep_scan=True)
diff --git a/frontik/dependency_manager/graph_runner.py b/frontik/dependency_manager/graph_runner.py
index 49445b175..fc27f8fa4 100644
--- a/frontik/dependency_manager/graph_runner.py
+++ b/frontik/dependency_manager/graph_runner.py
@@ -3,9 +3,8 @@
 import asyncio
 from typing import TYPE_CHECKING
 
-from frontik.dependency_manager.dependencies import Dependency, DependencyGraph
-
 if TYPE_CHECKING:
+    from frontik.dependency_manager.dependencies import Dependency, DependencyGraph
     from frontik.handler import PageHandler
 
 
diff --git a/tests/test_dependencies.py b/tests/test_dependencies.py
index aa7102196..1109e4ca7 100644
--- a/tests/test_dependencies.py
+++ b/tests/test_dependencies.py
@@ -3,7 +3,7 @@
 
 import pytest
 
-from frontik.dependency_manager import build_and_run_sub_graph, dep, execute_page_method_with_dependencies, async_deps
+from frontik.dependency_manager import async_deps, build_and_run_sub_graph, dep, execute_page_method_with_dependencies
 from frontik.handler import PageHandler