Gemfile in packnga-0.9.7 vs Gemfile in packnga-0.9.8

@@ -13,8 +13,8 @@
 #
 # You should have received a copy of the GNU Lesser General Public
 # License along with this library; if not, write to the Free Software
 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
-source "http://rubygems.org/"
+source "https://rubygems.org/"
 
 gemspec