diff --git a/Gemfile.lock b/Gemfile.lock
index 903bc3d..be59e93 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -47,8 +47,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     after_commit_action (1.1.0)
       activerecord (>= 3.0.0)
       activesupport (>= 3.0.0)
@@ -221,7 +221,7 @@ GEM
     pry-stack_explorer (0.4.9.3)
       binding_of_caller (>= 0.7)
       pry (>= 0.9.11)
-    public_suffix (3.1.1)
+    public_suffix (4.0.6)
     puma (4.0.0)
       nio4r (~> 2.0)
     rack (2.0.7)