diff --git a/pyproject.toml b/pyproject.toml
index 7cf8341..336d300 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -83,7 +83,7 @@ bench-sse = [
     "httpx==0.28.1",
 ]
 bench-markdown = [
-    "mistune==3.2.1",
+    "mistune==3.3.0",
 ]
 bench-diff = [
     "unidiff==0.7.5",