diff --git a/redis.proto b/redis.proto
index b81d559..7f0894c 100644
--- a/redis.proto
+++ b/redis.proto
@@ -79,4 +79,5 @@ service RedisService {
     rpc HGetAll(GetRequest) returns (HGetListResponse); //get hash all
     rpc HExists(HGetRequest) returns (DelResponse); //hash键是否存在
     rpc Exists(GetRequest) returns (DelResponse); //键是否存在
+    rpc HIncrby(GetRequest) returns (DelResponse); //hash数值+-1
 }
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