diff --git a/twstock/codes/fetch.py b/twstock/codes/fetch.py
index e6b3332..19fd4cd 100644
--- a/twstock/codes/fetch.py
+++ b/twstock/codes/fetch.py
@@ -15,8 +15,8 @@
 
 from twstock.proxy import get_proxies
 
-TWSE_EQUITIES_URL = "http://isin.twse.com.tw/isin/C_public.jsp?strMode=2"
-TPEX_EQUITIES_URL = "http://isin.twse.com.tw/isin/C_public.jsp?strMode=4"
+TWSE_EQUITIES_URL = "https://isin.twse.com.tw/isin/C_public.jsp?strMode=2"
+TPEX_EQUITIES_URL = "https://isin.twse.com.tw/isin/C_public.jsp?strMode=4"
 ROW = namedtuple(
     "Row", ["type", "code", "name", "ISIN", "start", "market", "group", "CFI"]
 )