diff --git a/pyproject.toml b/pyproject.toml
index c60cec5c7b..3d8c21d177 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -73,7 +73,7 @@ no-version = [
     "pyconizer",
     "c2cwsgiutils[standard]"]
 testing = [
-    "jsonschema==4.22.0",
+    "jsonschema==4.23.0",
     "lxml==5.2.2",
     "pytest==8.2.2",
     "pytest-cov==5.0.0",