diff --git a/changelog.md b/changelog.md
index a23fb70a..9bfbd7dd 100644
--- a/changelog.md
+++ b/changelog.md
@@ -21,6 +21,7 @@ Documentation
 Internal
 --------
 * Update `cli_helpers` to v2.15.2, improving vertical output.
+* Update `ruff` to v0.17.0.
 
 
 v2.29.6 (2026/10/15)
diff --git a/pyproject.toml b/pyproject.toml
index b5740d62..cf7f07cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -84,7 +84,7 @@ dev = [
     "pytest-random-order ~= 1.2.0",
     "tox ~= 4.64.9",
     "pdbpp ~= 0.12.1",
-    "ruff ~= 0.16.5",                       # keep in sync with the tool.tox.env.style stanza below
+    "ruff ~= 0.17.0",                       # keep in sync with the tool.tox.env.style stanza below
 ]
 
 [project.scripts]
@@ -166,7 +166,7 @@ allowlist_externals = ['rm', 'uv']
 
 [tool.tox.env.style]
 skip_install = true
-deps = ['ruff~=0.16.5']  # keep in sync with dev dependency group above
+deps = ['ruff~=0.17.0']  # keep in sync with dev dependency group above
 commands = [['ruff', 'check'],
             ['ruff', 'format', '--diff']]