diff --git a/pyproject.toml b/pyproject.toml
index 4f66d2d..2489574 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ dynamic = ["version"]
 requires-python = ">=3.10"
 dependencies = [
     "Jinja2==3.1.6",
-    "Flask==3.1.1",
+    "Flask==3.1.3",
     "redis==5.2.0",
     # there is newer ruamel available
     "ruamel.yaml<0.18.0",