diff --git a/Gemfile.lock b/Gemfile.lock
index d18aa4d..f98fb5c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     capybara (2.18.0)
       addressable
       mini_mime (>= 0.1.3)
@@ -74,7 +74,7 @@ GEM
     pry-remote (0.1.8)
       pry (~> 0.9)
       slop (~> 3.0)
-    public_suffix (3.0.2)
+    public_suffix (4.0.7)
     rack (2.2.2)
     rack-protection (2.0.3)
       rack