diff --git a/middleware/cors.go b/middleware/cors.go
index d2a109ab..f98aad24 100644
--- a/middleware/cors.go
+++ b/middleware/cors.go
@@ -11,5 +11,6 @@ func CORS() gin.HandlerFunc {
 	config.AllowCredentials = true
 	config.AllowMethods = []string{"GET", "POST", "PUT", "DELETE", "OPTIONS"}
 	config.AllowHeaders = []string{"*"}
+	config.ExposeHeaders = []string{"x-one-api-upstream-time"}
 	return cors.New(config)
 }