diff --git a/pyproject.toml b/pyproject.toml
index 4d1d1f0ec..0a85cedce 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -82,7 +82,7 @@ dependencies = [
     "websocket-client>=1.7.0",
     "urllib3>=2.7.0",
     "certifi>=2025.4.26",
-    "charset-normalizer>=3.4.2",
+    "charset-normalizer>=3.4.9",
     "idna>=3.18",
     "MarkupSafe>=3.0.2",
     "markdown>=3.5",  # Markdown-to-HTML rendering for artifact converters