diff --git a/internal/config/config.go b/internal/config/config.go
index 223362d..306a134 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -2,6 +2,7 @@ package config
 
 import (
 	"fmt"
+	"sync"
 
 	"github.com/fsnotify/fsnotify"
 	"github.com/spf13/viper"
@@ -17,6 +18,7 @@ type Config struct {
 }
 
 var APPConfig Config
+var configMu sync.Mutex
 
 const (
 	Url             = "url"
@@ -70,6 +72,8 @@ func InitConfig() {
 }
 
 func WriteConfig(key string, value any) {
+	configMu.Lock()
 	viper.Set(key, value)
 	viper.WriteConfig()
+	configMu.Unlock()
 }