diff --git a/pyproject.toml b/pyproject.toml
index 43b3771a..43a565d2 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -87,7 +87,7 @@ optional-dependencies.dev = [
     "vws-python-mock==2026.8.4.2",
     "vws-test-fixtures==2023.3.5",
     "yamlfix==1.19.1",
-    "zizmor==1.28.0",
+    "zizmor==1.29.0",
 ]
 optional-dependencies.release = [ "check-wheel-contents==0.6.3", "towncrier==25.8.0" ]
 urls.Documentation = "https://vws-python.github.io/vws-python/"