diff --git a/client.go b/client.go
index e18f558..6ff38c9 100644
--- a/client.go
+++ b/client.go
@@ -67,8 +67,8 @@ func (h *PrivilegeHandler) Fetch() error {
 		return err
 	}
 
-	h.RLock()
-	defer h.RUnlock()
+	h.Lock()
+	defer h.Unlock()
 	err = json.Unmarshal(buff, &h.privileges)
 	if err != nil {
 		return err