diff --git a/TaxBaik.Admin/Program.cs b/TaxBaik.Admin/Program.cs
index a27a165..c9d9d8f 100644
--- a/TaxBaik.Admin/Program.cs
+++ b/TaxBaik.Admin/Program.cs
@@ -1,4 +1,5 @@
 using System.Text.Encodings.Web;
+using System.Text.Unicode;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using MudBlazor.Services;
 using TaxBaik.Application;
@@ -20,9 +21,7 @@ builder.Services.AddMudServices();
 builder.Services.AddMemoryCache();
 
 // 한글 포함 다국어 문자를 유니코드 엔티티로 변환하지 않도록 설정
-builder.Services.Configure<WebEncoderOptions>(opts => {
-    opts.TextEncoderSettings = new TextEncoderSettings(UnicodeRanges.All);
-});
+builder.Services.AddSingleton(HtmlEncoder.Create(UnicodeRanges.All));
 
 builder.Services.AddInfrastructure();
 builder.Services.AddApplication();
diff --git a/TaxBaik.Web/Program.cs b/TaxBaik.Web/Program.cs
index 2cf99fd..44b4d29 100644
--- a/TaxBaik.Web/Program.cs
+++ b/TaxBaik.Web/Program.cs
@@ -1,5 +1,6 @@
 using System.IO.Compression;
 using System.Text.Encodings.Web;
+using System.Text.Unicode;
 using Microsoft.AspNetCore.ResponseCompression;
 using TaxBaik.Application;
 using TaxBaik.Infrastructure;
@@ -13,9 +14,7 @@ builder.Services.AddResponseCompression(opts => {
 });
 
 // 한글 포함 다국어 문자를 유니코드 엔티티로 변환하지 않도록 설정
-builder.Services.Configure<WebEncoderOptions>(opts => {
-    opts.TextEncoderSettings = new TextEncoderSettings(UnicodeRanges.All);
-});
+builder.Services.AddSingleton(HtmlEncoder.Create(UnicodeRanges.All));
 
 builder.Services.AddInfrastructure();
 builder.Services.AddApplication();