diff --git a/control b/control
index 5600fcfa..f759b4ee 100755
--- a/control
+++ b/control
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 # release version
-version=3.6.0
+version=3.6.1
 
 CWD=$(cd $(dirname $0)/; pwd)
 cd $CWD
diff --git a/src/modules/judge/backend/redi/redis.go b/src/modules/judge/backend/redi/redis.go
index 8957b8b2..83c9a0f9 100644
--- a/src/modules/judge/backend/redi/redis.go
+++ b/src/modules/judge/backend/redi/redis.go
@@ -39,7 +39,8 @@ func Init(cfg RedisSection) {
 	connTimeout := time.Duration(cfg.Timeout.Conn) * time.Millisecond
 	readTimeout := time.Duration(cfg.Timeout.Read) * time.Millisecond
 	writeTimeout := time.Duration(cfg.Timeout.Write) * time.Millisecond
-	for _, addr := range addrs {
+	for i := range addrs {
+		addr := addrs[i]
 		redisConnPool := &redis.Pool{
 			MaxIdle:     maxIdle,
 			IdleTimeout: idleTimeout,