diff --git a/backend/src/main/java/com/festago/upload/application/ImageFileUploadService.java b/backend/src/main/java/com/festago/upload/application/ImageFileUploadService.java
index e42f66687..9f6391b70 100644
--- a/backend/src/main/java/com/festago/upload/application/ImageFileUploadService.java
+++ b/backend/src/main/java/com/festago/upload/application/ImageFileUploadService.java
@@ -25,7 +25,7 @@
 public class ImageFileUploadService {
 
     private static final int MAX_FILE_SIZE = 2_000_000; // 2MB
-    private static final Set<FileExtension> ALLOW_IMAGE_EXTENSION = EnumSet.of(FileExtension.JPG, FileExtension.PNG);
+    private static final Set<FileExtension> ALLOW_IMAGE_EXTENSION = EnumSet.of(FileExtension.JPG, FileExtension.JPEG, FileExtension.PNG);
 
     private final StorageClient storageClient;
     private final UploadFileRepository uploadFileRepository;
diff --git a/backend/src/main/java/com/festago/upload/domain/FileExtension.java b/backend/src/main/java/com/festago/upload/domain/FileExtension.java
index ef511f693..b5387464c 100644
--- a/backend/src/main/java/com/festago/upload/domain/FileExtension.java
+++ b/backend/src/main/java/com/festago/upload/domain/FileExtension.java
@@ -8,6 +8,7 @@
 @RequiredArgsConstructor
 public enum FileExtension {
     JPG(".jpg", MimeTypeUtils.IMAGE_JPEG),
+    JPEG(".jpeg", MimeTypeUtils.IMAGE_JPEG),
     PNG(".png", MimeTypeUtils.IMAGE_PNG),
     NONE("", MimeTypeUtils.APPLICATION_OCTET_STREAM),
     ;
diff --git a/backend/src/test/java/com/festago/upload/application/ImageFileUploadServiceTest.java b/backend/src/test/java/com/festago/upload/application/ImageFileUploadServiceTest.java
index 108de8663..60a752fbd 100644
--- a/backend/src/test/java/com/festago/upload/application/ImageFileUploadServiceTest.java
+++ b/backend/src/test/java/com/festago/upload/application/ImageFileUploadServiceTest.java
@@ -41,7 +41,7 @@ void setUp() {
     }
 
     @ParameterizedTest
-    @ValueSource(strings = {"image.png", "image.jpg"})
+    @ValueSource(strings = {"image.png", "image.jpg", "image.jpeg"})
     void 이미지를_업로드할때_JPG_PNG_확장자이면_성공한다(String filename) {
         // given
         MultipartFile multipartFile = new MockMultipartFile("image", filename, "image/png",