diff --git a/src/main/java/com/example/healthylife/config/security/SecurityConfig.java b/src/main/java/com/example/healthylife/config/security/SecurityConfig.java
index bb90415..2c0a5d5 100644
--- a/src/main/java/com/example/healthylife/config/security/SecurityConfig.java
+++ b/src/main/java/com/example/healthylife/config/security/SecurityConfig.java
@@ -33,6 +33,7 @@ protected void configure(HttpSecurity http) throws Exception {
                 .authorizeRequests()
                 .antMatchers("/community/register", "/community/update", "/community/delete/**","/community/recommend/**","/community/myCommunityContents").authenticated()
                 .antMatchers("/user/one","/user/delete","/user/update").authenticated()
+                .antMatchers("/today/create","/today/myTodayContents","/today/update/**","/today/delete/**","/today/todayDetail/**").authenticated()
                 .anyRequest().permitAll()
                 .and()
                 .addFilterBefore(new JwtAuthenticationFilter(jwtUtil), UsernamePasswordAuthenticationFilter.class);
diff --git a/src/main/java/com/example/healthylife/controller/TodayController.java b/src/main/java/com/example/healthylife/controller/TodayController.java
index 93c7fae..0a23059 100644
--- a/src/main/java/com/example/healthylife/controller/TodayController.java
+++ b/src/main/java/com/example/healthylife/controller/TodayController.java
@@ -14,7 +14,6 @@
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
-import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.List;
 import java.util.Optional;
diff --git a/src/main/java/com/example/healthylife/service/S3Service.java b/src/main/java/com/example/healthylife/service/S3Service.java
index d81431e..ef002d0 100644
--- a/src/main/java/com/example/healthylife/service/S3Service.java
+++ b/src/main/java/com/example/healthylife/service/S3Service.java
@@ -25,12 +25,13 @@ public S3Service(S3Client s3Client) {
 
     // 파일 업로드
     public String uploadFileToS3(MultipartFile file) {
-        String fileName = file.getOriginalFilename();
+        String fileName = System.currentTimeMillis() + "_" + file.getOriginalFilename();
 
         try {
             PutObjectRequest putObjectRequest = PutObjectRequest.builder()
                     .bucket(bucketName)
                     .key(fileName)
+                    .contentType(file.getContentType()) // Content-Type 설정
                     .build();
 
             PutObjectResponse putObjectResponse = s3Client.putObject(putObjectRequest,
@@ -40,9 +41,10 @@ public String uploadFileToS3(MultipartFile file) {
             return "https://" + bucketName + ".s3.amazonaws.com/" + fileName;
 
         } catch (IOException e) {
-            throw new RuntimeException("S3 파일 업로드 실패", e);
+            throw new RuntimeException("S3 파일 업로드 실패: " + e.getMessage(), e);
         }
     }
+
     
     // 파일 삭제
     public void deleteFileFromS3(String fileName) {
diff --git a/src/main/java/com/example/healthylife/service/TodayService.java b/src/main/java/com/example/healthylife/service/TodayService.java
index a057ed3..91cf76a 100644
--- a/src/main/java/com/example/healthylife/service/TodayService.java
+++ b/src/main/java/com/example/healthylife/service/TodayService.java
@@ -81,7 +81,6 @@ public TodayEntity updateEntity(Long todayId, String content, MultipartFile file
                 String existingFileName = existingImageUrl.substring(existingImageUrl.lastIndexOf('/') + 1);
                 s3Service.deleteFileFromS3(existingFileName);
             }
-
             // 새로운 이미지 업로드
             String newImageUrl = s3Service.uploadFileToS3(file);
             existingTodayEntity.setImageurl(newImageUrl);