diff --git a/vendor/golang.org/x/text/unicode/norm/normalize.go b/vendor/golang.org/x/text/unicode/norm/normalize.go
index 95efcf2..e28ac64 100644
--- a/vendor/golang.org/x/text/unicode/norm/normalize.go
+++ b/vendor/golang.org/x/text/unicode/norm/normalize.go
@@ -29,8 +29,8 @@
 // proceed independently on both sides:
 //   f(x) == append(f(x[0:n]), f(x[n:])...)
 //
-// References: https://unicode.org/reports/tr15/ and
-// https://unicode.org/notes/tn5/.
+// References: http://unicode.org/reports/tr15/ and
+// http://unicode.org/notes/tn5/.
 type Form int
 
 const (