diff --git a/pyproject.toml b/pyproject.toml
index a57fd0a6d..5f0d3e36c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,6 +4,6 @@ requires = [
     "wheel",
     "versioneer",
     "pybind11 ~= 2.12",
-    "amulet_nbt ~= 4.0a1"
+    "amulet_nbt ~= 4.0a2"
 ]
 build-backend = "setuptools.build_meta"
diff --git a/setup.cfg b/setup.cfg
index c4a594e93..3b15d04fe 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -19,7 +19,7 @@ packages = find_namespace:
 python_requires = >=3.11
 install_requires =
     numpy~=1.21
-    amulet-nbt~=4.0a1
+    amulet-nbt~=4.0a2
     portalocker~=2.4
     amulet-leveldb~=1.0b0
     platformdirs~=3.1