diff --git a/map_extractor/extractor.py b/map_extractor/extractor.py
index 6e1b0e3..d47e354 100644
--- a/map_extractor/extractor.py
+++ b/map_extractor/extractor.py
@@ -1,8 +1,8 @@
 from io import BytesIO
 
-from nbtlib import Compound
 from PIL import Image
 import numpy as np
+import amulet_nbt
 
 
 __all__ = (
@@ -19,14 +19,14 @@ def iter_colors_from_world(world):
         if not key.startswith(b"map_"):
             continue
 
-        compound = Compound.parse(BytesIO(value), "little")[""]
+        compound = amulet_nbt.load(value, compressed=False, little_endian=True)
         colors = compound["colors"]
         if len(set(colors)) <= 1:
             continue
-        yield compound["mapId"].unpack(), colors
+        yield compound["mapId"].value, colors
 
 
 def generate_map_image(colors):
-    array = np.uint8(np.fromiter(colors, int))
+    array = np.fromiter(colors, np.uint8)
     image = array.reshape((MAP_WIDTH, MAP_HEIGHT, 4))
     return Image.fromarray(image)
diff --git a/setup.py b/setup.py
index a127445..60207dc 100644
--- a/setup.py
+++ b/setup.py
@@ -2,10 +2,10 @@
 
 setup(
     name="map-extractor",
-    version="1.1.0",
+    version="1.2.0",
     install_requires=[
         "Pillow>=9.0.1,<9.1.0",
-        "nbtlib>=2.0.4,<2.1.0",
+        "amulet-nbt>=1.0.3.10,<1.1.0.0",
         "tqdm>=4.62.3,<4.63.0"
     ],
     extras_require={