diff --git a/nodes/curve_nodes.py b/nodes/curve_nodes.py
index 77be51f..053d8c6 100644
--- a/nodes/curve_nodes.py
+++ b/nodes/curve_nodes.py
@@ -1,14 +1,12 @@
 import torch
 from torchvision import transforms
 import json
-from PIL import Image, ImageDraw, ImageFont, ImageColor, ImageFilter, ImageChops
+from PIL import Image, ImageDraw, ImageFont, ImageFilter
 import numpy as np
 from ..utility.utility import pil2tensor, tensor2pil
 import folder_paths
 import io
 import base64
-        
-from comfy.utils import common_upscale
 
 def parse_color(color):
     if isinstance(color, str) and ',' in color:
diff --git a/nodes/mask_nodes.py b/nodes/mask_nodes.py
index d9d6ad8..cd9db2d 100644
--- a/nodes/mask_nodes.py
+++ b/nodes/mask_nodes.py
@@ -881,6 +881,7 @@ class CreateVoronoiMask:
 
     def createvoronoi(self, frames, num_points, line_width, speed, frame_width, frame_height):
         from scipy.spatial import Voronoi
+        from matplotlib import pyplot as plt
         # Define the number of images in the batch
         batch_size = frames
         out = []
diff --git a/nodes/nodes.py b/nodes/nodes.py
index da6a527..7a88a7f 100644
--- a/nodes/nodes.py
+++ b/nodes/nodes.py
@@ -3,7 +3,6 @@ import torch.nn as nn
 import numpy as np
 from PIL import Image
 import json, re, os, io, time
-import re
 import importlib
 
 from comfy import model_management