diff --git a/pyproject.toml b/pyproject.toml
index d2e6e32b..03d2fb8a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -51,7 +51,7 @@ dev = [
     "redbaron~=0.9.0",
     "respx~=0.22.0",
     "ruff~=0.11.0",
-    "setuptools~=76.0.0",     # setuptools are used by pytest but not explicitly required
+    "setuptools~=77.0.1",     # setuptools are used by pytest but not explicitly required
 ]
 
 [tool.hatch.build.targets.wheel]
diff --git a/uv.lock b/uv.lock
index 0e2816ad..59cb99b4 100644
--- a/uv.lock
+++ b/uv.lock
@@ -70,7 +70,7 @@ dev = [
     { name = "redbaron", specifier = "~=0.9.0" },
     { name = "respx", specifier = "~=0.22.0" },
     { name = "ruff", specifier = "~=0.11.0" },
-    { name = "setuptools", specifier = "~=76.0.0" },
+    { name = "setuptools", specifier = "~=77.0.1" },
 ]
 
 [[package]]
@@ -981,11 +981,11 @@ wheels = [
 
 [[package]]
 name = "setuptools"
-version = "76.0.0"
+version = "77.0.1"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/32/d2/7b171caf085ba0d40d8391f54e1c75a1cda9255f542becf84575cfd8a732/setuptools-76.0.0.tar.gz", hash = "sha256:43b4ee60e10b0d0ee98ad11918e114c70701bc6051662a9a675a0496c1a158f4", size = 1349387 }
+sdist = { url = "https://files.pythonhosted.org/packages/ea/df/9f719dc48f64284be8bd99e2e0bb0dd6e9f8e2c2c3c7bf7a685bc5adf2c7/setuptools-77.0.1.tar.gz", hash = "sha256:a1246a1b4178c66d7cf50c9fc6d530fac3f89bc284cf803c7fa878c41b1a03b2", size = 1366225 }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/37/66/d2d7e6ad554f3a7c7297c3f8ef6e22643ad3d35ef5c63bf488bc89f32f31/setuptools-76.0.0-py3-none-any.whl", hash = "sha256:199466a166ff664970d0ee145839f5582cb9bca7a0a3a2e795b6a9cb2308e9c6", size = 1236106 },
+    { url = "https://files.pythonhosted.org/packages/40/50/bc3d02829a3babd70b7f1414c93cf6acd198976f0469a07d0e7b813c5002/setuptools-77.0.1-py3-none-any.whl", hash = "sha256:81a234dff81a82bb52e522c8aef145d0dd4de1fd6de4d3b196d0f77dc2fded26", size = 1254282 },
 ]
 
 [[package]]