diff --git a/Gemfile.lock b/Gemfile.lock
index c065e29..48db580 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -39,8 +39,8 @@ GEM
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     arel (8.0.0)
     autoprefixer-rails (8.1.0)
       execjs
@@ -343,7 +343,7 @@ GEM
     phony_rails (0.14.6)
       activesupport (>= 3.0)
       phony (> 2.15)
-    public_suffix (3.0.2)
+    public_suffix (4.0.6)
     puma (3.12.4)
     pusher-client (0.6.2)
       json