diff --git a/service-specs/guardrails-service-spec.yml b/service-specs/guardrails-service-spec.yml
index 73ef2fb..132077b 100644
--- a/service-specs/guardrails-service-spec.yml
+++ b/service-specs/guardrails-service-spec.yml
@@ -301,7 +301,6 @@ components:
             - "0.1"
       required:
         - outputSchema
-        - prompt
         - version
     Schema:
       type: object