diff --git a/src/calendars/brazil.rs b/src/calendars/brazil.rs
index 6c2b41d..e2d7889 100644
--- a/src/calendars/brazil.rs
+++ b/src/calendars/brazil.rs
@@ -80,7 +80,7 @@ impl<T: Datelike + Copy + PartialOrd> HolidayCalendar<T> for BRSettlement {
     }
 }
 
-/// B3 Exchange holidays (http://www.b3.com.br).
+/// B3 Exchange holidays (<https://www.b3.com.br>).
 pub struct BrazilExchange;
 
 impl<T: Datelike + Copy + PartialOrd> HolidayCalendar<T> for BrazilExchange {
diff --git a/src/lib.rs b/src/lib.rs
index 68c28cb..488fe77 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -12,7 +12,7 @@
 //!
 //! * `bdays::calendars::WeekendsOnly` : accounts only weekends
 //! * `bdays::calendars::brazil::BRSettlement` : Brazilian banking holidays
-//! * `bdays::calendars::brazil::BrazilExchange` : B3 Exchange holidays (http://www.b3.com.br)
+//! * `bdays::calendars::brazil::BrazilExchange` : B3 Exchange holidays (<https://www.b3.com.br>)
 //! * `bdays::calendars::us::USSettlement` : United States federal holidays
 //!
 //! # Usage