diff --git a/info.yaml b/info.yaml
index 25e0324..c0373ba 100644
--- a/info.yaml
+++ b/info.yaml
@@ -1,5 +1,5 @@
 title: "애니 다운로더"
-version: "0.5.39"
+version: "0.5.40"
 package_name: "anime_downloader"
 developer: "projectdx"
 description: "anime downloader"
diff --git a/lib/util.py b/lib/util.py
index 410cb0f..76e1954 100644
--- a/lib/util.py
+++ b/lib/util.py
@@ -58,11 +58,21 @@ class Util(object):
 
     @staticmethod
     def change_text_for_use_filename(text):
-        # text = text.replace('/', '')
-        # 2021-07-31 X:X
-        # text = text.replace(':', ' ')
-        text = re.sub('[\\/:*?\"<>|]', ' ', text).strip()
-        text = re.sub("\s{2,}", ' ', text)
+        # 1. Remove/replace Windows-forbidden characters
+        text = re.sub('[\\/:*?"<>|]', ' ', text)
+        
+        # 2. Remove consecutive dots (.. → .)
+        text = re.sub(r'\.{2,}', '.', text)
+        
+        # 3. Remove leading/trailing dots and spaces
+        text = text.strip('. ')
+        
+        # 4. Collapse multiple spaces to single space
+        text = re.sub(r'\s{2,}', ' ', text)
+        
+        # 5. Remove any remaining trailing dots (after space collapse)
+        text = text.rstrip('.')
+        
         return text
 
     @staticmethod