diff --git a/pyproject.toml b/pyproject.toml
index adeedf4..c3ecef8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ pyautotrace = "autotrace.__main__:main"
 dev = [
     "cython>=3.2.5,<3.4.0",
     "prek>=0.4.5,<0.6.0",
-    "setuptools>=82.0.1,<83.1.0",
+    "setuptools>=82.0.1,<84.1.0",
     {include-group = "standard"},
 ]
 standard = [
@@ -46,7 +46,7 @@ docs = [
 ]
 
 [build-system]
-requires = ["cython>=3.2.5,<3.4.0", "setuptools>=82.0.1,<83.1.0"]
+requires = ["cython>=3.2.5,<3.4.0", "setuptools>=82.0.1,<84.1.0"]
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools]
diff --git a/uv.lock b/uv.lock
index 7726e77..3dd8955 100644
--- a/uv.lock
+++ b/uv.lock
@@ -628,7 +628,7 @@ dev = [
     { name = "numpy", specifier = ">=2.0.0,<3.0.0" },
     { name = "pillow", specifier = ">=12.2.0,<13.0.0" },
     { name = "prek", specifier = ">=0.4.5,<0.6.0" },
-    { name = "setuptools", specifier = ">=82.0.1,<83.1.0" },
+    { name = "setuptools", specifier = ">=82.0.1,<84.1.0" },
 ]
 docs = [
     { name = "mkdocstrings-python", specifier = "~=2.0.4" },
@@ -781,11 +781,11 @@ wheels = [
 
 [[package]]
 name = "setuptools"
-version = "83.0.0"
+version = "84.0.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/34/26/f5d29e25ffdb535afef2d35cdb55b325298f96debd670da4c325e08d70f4/setuptools-83.0.0.tar.gz", hash = "sha256:025bccbbf0fa05b6192bc64ae1e7b16e001fd6d6d4d5de03c97b1c1ade523bef", size = 1154254, upload-time = "2026-07-04T15:31:22.699Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/6d/44/f5da03a8ef95d369145c5bb53050e7877c9f3d312e128605fd9504829143/setuptools-84.0.0.tar.gz", hash = "sha256:f4695c21257f0d9b537ec2692c941d02ee143b7cc1276941349a546573b2ef73", size = 1168449, upload-time = "2026-08-08T18:27:58.365Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/5d/40/e1e72872c6354b306daef1703549e8e83b4d43cfea356311bf722a043752/setuptools-83.0.0-py3-none-any.whl", hash = "sha256:29b23c360f22f414dc7336bb39178cc7bcbf6021ed2733cde173f09dba19abb3", size = 1008090, upload-time = "2026-07-04T15:31:20.885Z" },
+    { url = "https://files.pythonhosted.org/packages/95/9c/c510029fc6ef33a6275cd2c5d3cecd6613dfd6aa401d57c54f1c18852ccf/setuptools-84.0.0-py3-none-any.whl", hash = "sha256:51a52592b3b99e102b609654876bd65f19f999935166d1352678931132b0c670", size = 818216, upload-time = "2026-08-08T18:27:56.719Z" },
 ]
 
 [[package]]