diff --git a/lib/webmock/util/uri.rb b/lib/webmock/util/uri.rb
index c5274f10..add3cb04 100644
--- a/lib/webmock/util/uri.rb
+++ b/lib/webmock/util/uri.rb
@@ -68,7 +68,7 @@ def self.encode_unsafe_chars_in_userinfo(userinfo)
 
       def self.is_uri_localhost?(uri)
         uri.is_a?(Addressable::URI) &&
-        %w(localhost 127.0.0.1 0.0.0.0).include?(uri.host)
+        %w(localhost 127.0.0.1 0.0.0.0 [::1]).include?(uri.host)
       end
 
       private