diff --git a/pyproject.toml b/pyproject.toml
index b120afbdb..16dca4503 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -100,7 +100,7 @@ optional-dependencies.dev = [
     # into docs/source/unreleased.rst during Sphinx builds.
     "sphinxcontrib-towncrier==0.5.0a0",
     "strict-kwargs==2026.6.4",
-    "sybil==10.0.1",
+    "sybil==10.1.0",
     "tenacity==9.1.4",
     "towncrier==25.8.0",
     "ty==0.0.49",