Update runtime files
diff --git a/runtime/tutor/tutor.zh.big5 b/runtime/tutor/tutor.zh.big5
index 3869b4e..6a4e2cb 100644
--- a/runtime/tutor/tutor.zh.big5
+++ b/runtime/tutor/tutor.zh.big5
@@ -805,7 +805,7 @@
 	¥Xª©ªÀ¡JNew Riders
 
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-  ©M¹Ï¥Ü¡C±ýª¾¸Ô±¡¡A½Ð³X°Ý http://iccf-holland.org/click5.html
+  ©M¹Ï¥Ü¡C±ýª¾¸Ô±¡¡A½Ð³X°Ý https://iccf-holland.org/click5.html
 
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