diff --git a/jpo-ode-core/src/main/resources/schemas/schema-bsm.json b/jpo-ode-core/src/main/resources/schemas/schema-bsm.json
index a3f322f2d..82f5c9497 100644
--- a/jpo-ode-core/src/main/resources/schemas/schema-bsm.json
+++ b/jpo-ode-core/src/main/resources/schemas/schema-bsm.json
@@ -2171,7 +2171,6 @@
                                 ]
                             },
                             "maxItems": 8,
-                            "minItems": 1,
                             "type": [
                                 "array",
                                 "null"