diff --git a/yfinance/utils.py b/yfinance/utils.py
index <HASH>..<HASH> 100644
--- a/yfinance/utils.py
+++ b/yfinance/utils.py
@@ -64,7 +64,7 @@ def get_json(url, proxy=None):
 
 
 def camel2title(o):
-    return [_re.sub("([a-z])([A-Z])", "\g<1> \g<2>", i).title() for i in o]
+    return [_re.sub("([a-z])([A-Z])", r"\g<1> \g<2>", i).title() for i in o]
 
 
 def auto_adjust(data):
Fix deprecation warnings due to invalid escape sequences.