diff --git a/hakuimg/blend.py b/hakuimg/blend.py
index c37ac95..35b49cc 100644
--- a/hakuimg/blend.py
+++ b/hakuimg/blend.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from PIL import Image, ImageFilter, ImageColor
 import numpy as np
 import cv2
diff --git a/hakuimg/blur.py b/hakuimg/blur.py
index 5b22413..a6a9cf5 100644
--- a/hakuimg/blur.py
+++ b/hakuimg/blur.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from PIL import Image, ImageFilter
 
 
diff --git a/hakuimg/color.py b/hakuimg/color.py
index 0426f6d..60c0e1c 100644
--- a/hakuimg/color.py
+++ b/hakuimg/color.py
@@ -1,5 +1,3 @@
-from __future__ import annotations
-
 from PIL import Image, ImageEnhance
 import cv2
 import numpy as np
diff --git a/hakuimg/curve.py b/hakuimg/curve.py
index b62889a..72f623d 100644
--- a/hakuimg/curve.py
+++ b/hakuimg/curve.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, Tuple, List, Union
 from numpy.typing import NDArray
 
 import cv2
@@ -62,7 +62,7 @@ def run(
 ):
     def curve(
         img: NDArray,
-        *args: list[int]
+        *args: List[int]
     ):
         nonlocal points
         #all, r, g, b
diff --git a/hakuimg/dither.py b/hakuimg/dither.py
index ee46eb9..3927277 100644
--- a/hakuimg/dither.py
+++ b/hakuimg/dither.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, Tuple, List, Union
 from numpy.typing import NDArray
 
 from itertools import product
@@ -35,7 +35,7 @@ def dithering(
 def run(
     src,
     k: int = 3,
-) -> tuple[Image.Image, list[list[str|float]]]:
+):
     def calc():
         pass
     return Image.fromarray(result)
\ No newline at end of file
diff --git a/hakuimg/neon.py b/hakuimg/neon.py
index 6554e23..439aa58 100644
--- a/hakuimg/neon.py
+++ b/hakuimg/neon.py
@@ -1,8 +1,3 @@
-from __future__ import annotations
-
-from typing import Any
-from numpy.typing import NDArray
-
 import cv2
 from PIL import Image
 import numpy as np
diff --git a/hakuimg/pixel.py b/hakuimg/pixel.py
index d360cb4..0c81f53 100644
--- a/hakuimg/pixel.py
+++ b/hakuimg/pixel.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any
+from typing import Any, Tuple, List, Union
 from numpy.typing import NDArray
 
 import cv2
@@ -92,7 +92,7 @@ def pixelize(
     precise: int,
     mode: str = 'dithering',
     resize: bool = True
-) -> tuple[NDArray[Any], NDArray[Any]]:
+) -> Tuple[NDArray[Any], NDArray[Any]]:
     '''
     Use down scale and up scale to make pixel image.
     
@@ -150,7 +150,7 @@ def run(
     mode: str = 'kmeans',
     precise: int = 10,
     resize: bool = True
-) -> tuple[Image.Image, list[list[str|float]]]:
+) -> Tuple[Image.Image, List[List[Union[str, float]]]]:
     #print('Start process.')
     #print('Read raw image... ', end='', flush=True)
     img = read_img_as_array(src)
diff --git a/hakuimg/sketch.py b/hakuimg/sketch.py
index a93ef19..cc085b6 100644
--- a/hakuimg/sketch.py
+++ b/hakuimg/sketch.py
@@ -1,11 +1,8 @@
-from __future__ import annotations
-
 from PIL import Image
 import cv2
 import numpy as np
 
 
-
 def fix_float(val, eps=1e-3):
     return float(val)-eps
 
diff --git a/scripts/main.py b/scripts/main.py
index 141375d..085f1a6 100644
--- a/scripts/main.py
+++ b/scripts/main.py
@@ -1,4 +1,5 @@
 from __future__ import annotations
+from typing import Any, Tuple, List, Union
 
 from modules import shared
 from modules import scripts
@@ -26,7 +27,7 @@ UI part
 
 inpaint_base: gr.Image
 inpaint_mask: gr.Image
-all_btns: list[tuple[gr.Button, ...]] = []
+all_btns: List[Tuple[gr.Button, ...]] = []
 layers = int(shared.opts.data.get('hakuimg_layer_num', 5))
 points = int(shared.opts.data.get('hakuimg_curve_points', 3))