diff --git a/main.go b/main.go
index 68c0774..0f8b41f 100644
--- a/main.go
+++ b/main.go
@@ -24,6 +24,10 @@ func main() {
 		log.Fatal("cannot connect to db: ", err)
 	}
 
+	// limit db connection
+	dbConn.SetConnMaxLifetime(100)
+	dbConn.SetMaxOpenConns(100)
+
 	store := db.NewStore(dbConn)
 	server, err := api.NewServer(config, store)
 	if err != nil {