diff --git a/src/Active/YahooFinance.py b/src/Active/YahooFinance.py
index f654d5c..be5ce4b 100644
--- a/src/Active/YahooFinance.py
+++ b/src/Active/YahooFinance.py
@@ -15,7 +15,7 @@ def _construct_url(cls, ticker_symbol):
   def _isPercentage(cls, text):
     if not isinstance(text, str):
       return False
-    match = re.match('(\d+(\.\d+)?%)', text)
+    match = re.match(r'(\d+(\.\d+)?%)', text)
     return match != None
 
   @classmethod
@@ -41,4 +41,4 @@ def parse_analyst_five_year_growth_rate(self, content):
       if text == 'Next 5 Years (per annum)':
         percentage = YahooFinanceAnalysis._parseNextPercentage(tree_iterator)
         self.five_year_growth_rate = percentage.rstrip("%") if percentage else None
-    return True if self.five_year_growth_rate else False
\ No newline at end of file
+    return True if self.five_year_growth_rate else False