diff --git a/Gemfile.lock b/Gemfile.lock
index 3f59b6a..c302359 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -48,8 +48,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     apparition (0.5.0)
       capybara (~> 3.13, < 4)
       websocket-driver (>= 0.6.5)
@@ -100,7 +100,7 @@ GEM
     pry-byebug (3.9.0)
       byebug (~> 11.0)
       pry (~> 0.13.0)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     puma (4.3.5)
       nio4r (~> 2.0)
     rack (2.2.3)