diff --git a/src/main/java/com/project/notification/service/TemplateVersionService.java b/src/main/java/com/project/notification/service/TemplateVersionService.java
index 6d54a80..5185d4d 100644
--- a/src/main/java/com/project/notification/service/TemplateVersionService.java
+++ b/src/main/java/com/project/notification/service/TemplateVersionService.java
@@ -64,7 +64,7 @@ public TemplateVersionResponse createVersion(
 
         int nextVersion = versionRepository.findMaxVersion(groupId, request.channel()) + 1;
 
-        String subject = normalizeSubject(request.channel(), request.subject());
+        String subject = request.subject();
         TemplateVersion version =
                 TemplateVersion.builder()
                         .templateGroup(group)
@@ -139,7 +139,7 @@ public TemplateVersionResponse updateVersion(
             validateBody(request.body());
         }
 
-        String subject = normalizeSubject(version.getChannel(), request.subject());
+        String subject = request.subject();
         version.updateContent(subject, request.body(), request.variables());
 
         return TemplateVersionResponse.from(version);
@@ -243,13 +243,6 @@ private void validateBody(String body) {
         }
     }
 
-    private String normalizeSubject(Channel channel, String subject) {
-        if (channel == Channel.SMS) {
-            return null;
-        }
-        return subject;
-    }
-
     private Set<String> extractRequiredKeys(Map<String, Object> variables) {
         if (variables == null) {
             return Set.of();