diff --git a/config/default.yaml b/config/default.yaml
index 99e8e47..24071d5 100644
--- a/config/default.yaml
+++ b/config/default.yaml
@@ -98,6 +98,6 @@ rateLimiter:
     rpm: 100
   redis: 
     host: "localhost"
-    port: "6379"
+    port: 6379
     password: ""
   test: false
\ No newline at end of file
diff --git a/config/docker_test.yaml b/config/docker_test.yaml
index 55f87b6..4bbca4c 100644
--- a/config/docker_test.yaml
+++ b/config/docker_test.yaml
@@ -98,6 +98,6 @@ rateLimiter:
     rpm: 100
   redis: 
     host: "redis"
-    port: "6379"
+    port: 6379
     password: ""
   test: true
diff --git a/config/test.yaml b/config/test.yaml
index d7b69b9..0c47573 100644
--- a/config/test.yaml
+++ b/config/test.yaml
@@ -96,6 +96,6 @@ rateLimiter:
     rpm: 100
   redis: 
     host: "localhost"
-    port: "6379"
+    port: 6379
     password: ""
   test: true
\ No newline at end of file
diff --git a/extensions/rate_limiter.go b/extensions/rate_limiter.go
index cc172b0..7a0f116 100644
--- a/extensions/rate_limiter.go
+++ b/extensions/rate_limiter.go
@@ -21,12 +21,12 @@ type rateLimiter struct {
 
 func NewRateLimiter(config *viper.Viper, logger *logrus.Logger) rateLimiter {
 	host := config.GetString("rateLimiter.redis.host")
-	port := config.GetString("rateLimiter.redis.port")
+	port := config.GetInt("rateLimiter.redis.port")
 	pwd := config.GetString("rateLimiter.redis.password")
 	limit := config.GetInt("rateLimiter.limit.rpm")
 	isTest := config.GetBool("rateLimiter.test")
 
-	addr := fmt.Sprintf("%s:%s", host, port)
+	addr := fmt.Sprintf("%s:%d", host, port)
 	opts := &redis.Options{
 		Addr:     addr,
 		Password: pwd,