diff --git a/src/Graph/edge.py b/src/Graph/edge.py
index f3f55ba..f38f452 100644
--- a/src/Graph/edge.py
+++ b/src/Graph/edge.py
@@ -1,9 +1,8 @@
 """A Edge class to config the Edge in Graph"""
+from tkinter import *
 from typing import TYPE_CHECKING
 
 from ttkbootstrap import *
-from tkinter import *
-
 
 if TYPE_CHECKING:
     from frame_graph import FrameGraph
diff --git a/src/Graph/frame_graph.py b/src/Graph/frame_graph.py
index da50725..7e11f04 100644
--- a/src/Graph/frame_graph.py
+++ b/src/Graph/frame_graph.py
@@ -1,8 +1,8 @@
 """Frame contains Graph to visualize the algorithm"""
-from ttkbootstrap import *
+from tkinter import *
 from typing import TYPE_CHECKING
 
-from tkinter import *
+from ttkbootstrap import *
 
 from .edge import Edge
 from .node import Node
diff --git a/src/Graph/node.py b/src/Graph/node.py
index 94b5d87..e130392 100644
--- a/src/Graph/node.py
+++ b/src/Graph/node.py
@@ -1,9 +1,8 @@
 """A Node class to config the node in Graph"""
+from tkinter import *
 from typing import TYPE_CHECKING
 
 from ttkbootstrap import *
-from tkinter import *
-
 
 if TYPE_CHECKING:
     from .frame_graph import FrameGraph
diff --git a/src/Graph/window.py b/src/Graph/window.py
index 939b70e..e89b334 100644
--- a/src/Graph/window.py
+++ b/src/Graph/window.py
@@ -1,12 +1,11 @@
 """The Window shows Application"""
-from ttkbootstrap import *
 from tkinter import *
 
+from ttkbootstrap import *
 
+from ..utils import HEIGHT_WINDOW, WIDTH_WINDOW
 from .frame_graph import FrameGraph
 
-from ..utils import WIDTH_WINDOW, HEIGHT_WINDOW
-
 
 class CWindow(Window):
     """The window class inherits from tb.Window"""