diff --git a/doc/ChangeLog-2.3.0 b/doc/ChangeLog-2.3.0
index 7f3c4e672a..629fd9c4ec 100644
--- a/doc/ChangeLog-2.3.0
+++ b/doc/ChangeLog-2.3.0
@@ -5283,7 +5283,7 @@ Sat Aug  1 06:54:36 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
 	* ext/openssl/ossl_ssl.c (Init_ossl_ssl): OpenSSL declares these
 	  constants as longs, so we should follow that and use LONG2NUM.
-	  http://git.io/vOqxD
+	  https://github.com/openssl/openssl/blob/34750dc25d74e3db4c1ba43cd219d3f4825e4c65/include/openssl/ssl.h#L391
 
 Sat Aug  1 04:06:29 2015  Aaron Patterson <tenderlove@ruby-lang.org>
 
@@ -6754,7 +6754,8 @@ Thu Jul  2 09:51:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 Thu Jul  2 06:49:44 2015  SHIBATA Hiroshi  <hsbt@ruby-lang.org>
 
 	* lib/rubygems: Update to RubyGems HEAD(c202db2).
-	  this version contains many enhancements see http://git.io/vtNwF
+	  this version contains many enhancements see
+	  https://github.com/rubygems/rubygems/blob/c202db2d681eb3c3a02f187d346fbb2e8d733b26/History.txt#L3
 	* test/rubygems: ditto.
 
 Wed Jul  1 23:50:34 2015  Kazuhiro NISHIYAMA  <zn@mbf.nifty.com>
diff --git a/lib/rubygems/text.rb b/lib/rubygems/text.rb
index acf25a0bcd..d6b891380e 100644
--- a/lib/rubygems/text.rb
+++ b/lib/rubygems/text.rb
@@ -51,7 +51,7 @@ module Gem::Text
 
   # Returns a value representing the "cost" of transforming str1 into str2
   # Vendored version of DidYouMean::Levenshtein.distance from the ruby/did_you_mean gem @ 1.4.0
-  # https://git.io/JJgZI
+  # https://github.com/ruby/did_you_mean/blob/2ddf39b874808685965dbc47d344cf6c7651807c/lib/did_you_mean/levenshtein.rb#L7-L37
   def levenshtein_distance(str1, str2)
     n = str1.length
     m = str2.length