diff --git a/changelog.md b/changelog.md
index 346e0c1f..8f5dd149 100644
--- a/changelog.md
+++ b/changelog.md
@@ -8,6 +8,7 @@ Internal
 * No-op updates to pinned dependencies.
 * Upgrade `yaspin` dependency to v3.5.1.
 * Upgrade `wcwidth` dependency to v0.9.1, which includes a C11 core.
+* Upgrade `setuptools` optional dependency to v84.x.x.
 
 
 v2.28.1 (2026/10/03)
diff --git a/pyproject.toml b/pyproject.toml
index 7aa5b8a8..c9a99382 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -62,7 +62,7 @@ build-backend = "setuptools.build_meta"
 [project.optional-dependencies]
 llm = [
     "llm ~= 0.36",
-    "setuptools == 83.*",                   # Required by llm commands to install models
+    "setuptools == 84.*",                   # Required by llm commands to install models
     "pip ~= 26.2.1",
     "httpx2 ~= 2.13.1",                     # transitive dependency forced for "uv audit"
 ]