diff --git a/src/backend/tests/integration/utils.py b/src/backend/tests/integration/utils.py
index 1389cd082..1e79ee1db 100644
--- a/src/backend/tests/integration/utils.py
+++ b/src/backend/tests/integration/utils.py
@@ -1,5 +1,4 @@
 import os
-from typing import List
 
 from astrapy.admin import parse_api_endpoint
 from langflow.field_typing import Embeddings
@@ -43,10 +42,10 @@ class MockEmbeddings(Embeddings):
     def mock_embedding(text: str):
         return [len(text) / 2, len(text) / 5, len(text) / 10]
 
-    def embed_documents(self, texts: List[str]) -> List[List[float]]:
+    def embed_documents(self, texts: list[str]) -> list[list[float]]:
         self.embedded_documents = texts
         return [self.mock_embedding(text) for text in texts]
 
-    def embed_query(self, text: str) -> List[float]:
+    def embed_query(self, text: str) -> list[float]:
         self.embedded_query = text
         return self.mock_embedding(text)
diff --git a/src/backend/tests/unit/graph/test_graph.py b/src/backend/tests/unit/graph/test_graph.py
index f6b85aa4e..3d26d0744 100644
--- a/src/backend/tests/unit/graph/test_graph.py
+++ b/src/backend/tests/unit/graph/test_graph.py
@@ -1,7 +1,6 @@
 import copy
 import json
 import pickle
-from typing import Type, Union
 
 import pytest
 
@@ -62,7 +61,7 @@ def sample_nodes():
     ]
 
 
-def get_node_by_type(graph, node_type: Type[Vertex]) -> Union[Vertex, None]:
+def get_node_by_type(graph, node_type: type[Vertex]) -> Vertex | None:
     """Get a node by type"""
     return next((node for node in graph.vertices if isinstance(node, node_type)), None)
 
diff --git a/src/backend/tests/unit/test_custom_component.py b/src/backend/tests/unit/test_custom_component.py
index 5d91cc9dc..29030c9c5 100644
--- a/src/backend/tests/unit/test_custom_component.py
+++ b/src/backend/tests/unit/test_custom_component.py
@@ -19,7 +19,7 @@ def client():
 
 @pytest.fixture
 def code_component_with_multiple_outputs():
-    with open("src/backend/tests/data/component_multiple_outputs.py", "r") as f:
+    with open("src/backend/tests/data/component_multiple_outputs.py") as f:
         code = f.read()
         return Component(_code=code)
 
diff --git a/src/backend/tests/unit/test_helper_components.py b/src/backend/tests/unit/test_helper_components.py
index fc343fbaa..83e049d8a 100644
--- a/src/backend/tests/unit/test_helper_components.py
+++ b/src/backend/tests/unit/test_helper_components.py
@@ -39,7 +39,7 @@ def client():
 def test_uuid_generator_component():
     # Arrange
     uuid_generator_component = helpers.IDGeneratorComponent()
-    uuid_generator_component._code = open(helpers.IDGenerator.__file__, "r").read()
+    uuid_generator_component._code = open(helpers.IDGenerator.__file__).read()
 
     frontend_node, _ = build_custom_component_template(uuid_generator_component)
 
diff --git a/src/backend/tests/unit/test_kubernetes_secrets.py b/src/backend/tests/unit/test_kubernetes_secrets.py
index 9de359535..1e48272cf 100644
--- a/src/backend/tests/unit/test_kubernetes_secrets.py
+++ b/src/backend/tests/unit/test_kubernetes_secrets.py
@@ -33,13 +33,13 @@ def test_create_secret(secret_manager, mocker):
             kind="Secret",
             metadata=V1ObjectMeta(name="test-secret"),
             type="Opaque",
-            data={"key": b64encode("value".encode()).decode()},
+            data={"key": b64encode(b"value").decode()},
         ),
     )
 
 
 def test_get_secret(secret_manager, mocker):
-    mock_secret = V1Secret(data={"key": b64encode("value".encode()).decode()})
+    mock_secret = V1Secret(data={"key": b64encode(b"value").decode()})
     mocker.patch.object(secret_manager.core_api, "read_namespaced_secret", return_value=mock_secret)
 
     secret_data = secret_manager.get_secret(name="test-secret")
diff --git a/src/backend/tests/unit/test_template.py b/src/backend/tests/unit/test_template.py
index c1282b578..b9b38f2fc 100644
--- a/src/backend/tests/unit/test_template.py
+++ b/src/backend/tests/unit/test_template.py
@@ -1,5 +1,4 @@
 import importlib
-from typing import Dict, List, Optional
 
 import pytest
 from langflow.utils.util import build_template_from_function, get_base_classes, get_default_factory
@@ -27,14 +26,14 @@ class Child(Parent):
 class ExampleClass1(BaseModel):
     """Example class 1."""
 
-    def __init__(self, data: Optional[List[int]] = None):
+    def __init__(self, data: list[int] | None = None):
         self.data = data or [1, 2, 3]
 
 
 class ExampleClass2(BaseModel):
     """Example class 2."""
 
-    def __init__(self, data: Optional[Dict[str, int]] = None):
+    def __init__(self, data: dict[str, int] | None = None):
         self.data = data or {"a": 1, "b": 2, "c": 3}