diff --git a/fet2020/gallery/utils.py b/fet2020/gallery/utils.py
index 44073387..9068bc05 100644
--- a/fet2020/gallery/utils.py
+++ b/fet2020/gallery/utils.py
@@ -1,58 +1,60 @@
-import logging
-import os
-from pathlib import Path
-
-from django.conf import settings
-from django.core.validators import get_available_image_extensions
-from PIL import Image, ImageOps
-
-gallery_path = Path(settings.MEDIA_ROOT) / settings.GALLERY["path"]
-gallery_path_url = Path(settings.MEDIA_URL) / settings.GALLERY["path"]
-gallery_thumb_path = Path(settings.MEDIA_ROOT) / settings.GALLERY["thumb_path"]
-gallery_thumb_path_url = Path(settings.MEDIA_URL) / settings.GALLERY["thumb_path"]
-logger = logging.getLogger(__name__)
-size = (320, 320)
-
-Image.logger.setLevel(level=logging.INFO)
-
-
-def get_image_list(folder_name: str) -> list:
-    image_path = Path(gallery_path) / folder_name
-    thumb_path = Path(gallery_thumb_path) / folder_name
-    img_list = []
-
-    if not Path(image_path).exists():
-        logger.info("Image path '%s' not found.", image_path)
-        return img_list
-
-    Path(thumb_path).mkdir(exist_ok=True)
-
-    for _file in os.listdir(image_path):
-        if Path(_file).suffix.lower()[1:] not in get_available_image_extensions():
-            continue
-
-        thumb_file_path = Path(thumb_path) / f"thumb_{_file}"
-        if not Path(thumb_file_path).exists():
-            with Image.open(Path(image_path) / _file, "r") as im:
-                if im._getexif() is not None:
-                    im = ImageOps.exif_transpose(im)
-
-                thumb = ImageOps.fit(im, size, Image.Resampling.LANCZOS)
-                thumb.save(thumb_file_path)
-                logger.info("Save thumb 'thumb_%s'.", _file)
-
-        img_dict = {
-            "title": _file,
-            "image_url": Path(gallery_path_url) / folder_name / _file,
-            "thumb_url": Path(gallery_thumb_path_url) / folder_name / f"thumb_{_file}",
-        }
-        img_list.append(img_dict)
-
-    return img_list
-
-
-def get_folder_list():
-    if Path(gallery_path).exists():
-        return next(os.walk(gallery_path))[1]
-
-    return None
+import logging
+import os
+from pathlib import Path
+
+from django.conf import settings
+from django.core.validators import get_available_image_extensions
+from PIL import Image, ImageOps
+
+gallery_path = Path(settings.MEDIA_ROOT) / settings.GALLERY["path"]
+gallery_path_url = Path(settings.MEDIA_URL) / settings.GALLERY["path"]
+gallery_thumb_path = Path(settings.MEDIA_ROOT) / settings.GALLERY["thumb_path"]
+gallery_thumb_path_url = Path(settings.MEDIA_URL) / settings.GALLERY["thumb_path"]
+logger = logging.getLogger(__name__)
+size = (320, 320)
+
+Image.logger.setLevel(level=logging.INFO)
+
+
+def get_image_list(folder_name: str) -> list:
+    image_path = Path(gallery_path) / folder_name
+    thumb_path = Path(gallery_thumb_path) / folder_name
+    img_list = []
+
+    if not Path(image_path).exists():
+        logger.info("Image path '%s' not found.", image_path)
+        return img_list
+
+    Path(thumb_path).mkdir(exist_ok=True)
+
+    for _file in os.listdir(image_path):
+        if Path(_file).suffix.lower()[1:] not in get_available_image_extensions():
+            continue
+
+        thumb_file_path = Path(thumb_path) / f"thumb_{_file}"
+        if not Path(thumb_file_path).exists():
+            with Image.open(Path(image_path) / _file, "r") as im:
+                if im._getexif() is not None:
+                    im = ImageOps.exif_transpose(im)
+
+                thumb = ImageOps.fit(im, size, Image.Resampling.LANCZOS)
+                thumb.save(thumb_file_path)
+                logger.info("Save thumb 'thumb_%s'.", _file)
+
+        img_dict = {
+            "title": _file,
+            "image_url": Path(gallery_path_url) / folder_name / _file,
+            "thumb_url": Path(gallery_thumb_path_url) / folder_name / f"thumb_{_file}",
+        }
+        img_list.append(img_dict)
+
+    # Sort images alphabetically by filename (case-insensitive) to ensure consistent ordering.
+    # Directory listings may return files in different orders.
+    return sorted(img_list, key=lambda x: x["title"].lower())
+
+
+def get_folder_list():
+    if Path(gallery_path).exists():
+        return next(os.walk(gallery_path))[1]
+
+    return None