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@@ -61,5 +61,5 @@ language itself. Please note the following hints for your Ruby code:
#### Comply with the Ruby standard (ISO/IEC 30170:2012)
mruby is currently targeting to execute Ruby code which complies to ISO/IEC
-30170:2012 (http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=59579),
+30170:2012 (https://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=59579),
unless there's a clear reason, e.g. the latest Ruby has changed behavior from ISO.