diff --git a/lib/utils/files.ts b/lib/utils/files.ts
index 8810807..446c541 100644
--- a/lib/utils/files.ts
+++ b/lib/utils/files.ts
@@ -29,8 +29,8 @@ export interface SortOptions {
 }
 
 export function sortEntriesByName(entryA: Deno.DirEntry, entryB: Deno.DirEntry) {
-  const nameA = entryA.name.toLowerCase();
-  const nameB = entryB.name.toLowerCase();
+  const nameA = entryA.name.toLocaleLowerCase();
+  const nameB = entryB.name.toLocaleLowerCase();
   
   if (nameA > nameB) {
     return 1;
@@ -44,8 +44,8 @@ export function sortEntriesByName(entryA: Deno.DirEntry, entryB: Deno.DirEntry)
 }
 
 export function sortDirectoriesByName(directoryA: Directory, directoryB: Directory) {
-  const nameA = directoryA.directory_name.toLowerCase();
-  const nameB = directoryB.directory_name.toLowerCase();
+  const nameA = directoryA.directory_name.toLocaleLowerCase();
+  const nameB = directoryB.directory_name.toLocaleLowerCase();
   
   if (nameA > nameB) {
     return 1;
@@ -59,8 +59,8 @@ export function sortDirectoriesByName(directoryA: Directory, directoryB: Directo
 }
 
 export function sortFilesByName(fileA: DirectoryFile, fileB: DirectoryFile) {
-  const nameA = fileA.file_name.toLowerCase();
-  const nameB = fileB.file_name.toLowerCase();
+  const nameA = fileA.file_name.toLocaleLowerCase();
+  const nameB = fileB.file_name.toLocaleLowerCase();
   
   if (nameA > nameB) {
     return 1;