diff --git a/schemas/legacy.json b/schemas/legacy.json
index b35ee7a..597a655 100644
--- a/schemas/legacy.json
+++ b/schemas/legacy.json
@@ -932,7 +932,9 @@
                 "type": "number"
             },
             "CPURequired": {
-                "type": "number"
+                "type": "number",
+                "multipleOf": 1,
+                "minimum": 0
             },
             "ChannelNames": {
                 "items": {