diff --git a/yoink/comic.py b/yoink/comic.py
index cce7679..03f53a7 100644
--- a/yoink/comic.py
+++ b/yoink/comic.py
@@ -70,9 +70,9 @@ class Comic(Scrapable):
 
     @property
     def issue_number(self) -> int:
-        # matches any year in parentheses (xxxx)
-        # TODO yoink/comic.py:74: DeprecationWarning: invalid escape sequence '\('
-        date_reg = re.search("(\([12]\d{3}\))", self.title)
+        # matches any year in parentheses 
+        # TODO fix yoink/comic.py:74: DeprecationWarning: invalid escape sequence '\('
+        date_reg = re.search("(\\([12]\\d{3}\\))", self.title)
 
         try:
             return int(self.title[:date_reg.start() - 1][-1])