diff --git a/package.json b/package.json
index a8962e9..7956c0e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@orionprotocol/sdk",
-  "version": "0.17.7",
+  "version": "0.17.8",
   "description": "Orion Protocol SDK",
   "main": "./lib/esm/index.js",
   "module": "./lib/esm/index.js",
diff --git a/src/services/OrionAggregator/ws/schemas/futuresTradeInfoSchema.ts b/src/services/OrionAggregator/ws/schemas/futuresTradeInfoSchema.ts
index ebe9471..e6fde41 100644
--- a/src/services/OrionAggregator/ws/schemas/futuresTradeInfoSchema.ts
+++ b/src/services/OrionAggregator/ws/schemas/futuresTradeInfoSchema.ts
@@ -6,8 +6,8 @@ const futuresTradeInfoSchema = z.object({
   id: z.string(), // trade info request UUID, set by client side
   S: z.string(), // sender
   i: z.string(), // instrument
-  bp: z.number(), // buy price
-  sp: z.number(), // sell price
+  bp: z.number().nullable(), // buy price
+  sp: z.number().nullable(), // sell price
   bpw: z.number(), // buy power
   spw: z.number(), // sell power
   ma: z.number(), // min amount