diff --git a/requirements-dev.txt b/requirements-dev.txt
index 1bdceeb..30dc422 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -2,4 +2,4 @@
 -r requirements.txt
 ruff==0.16.0  # pinned exact — bump deliberately, not via range
 pre-commit~=4.6
-jsonschema==4.25.1  # validates published allocator contracts and examples
+jsonschema==4.26.0  # validates published allocator contracts and examples