diff --git a/Gemfile.lock b/Gemfile.lock
index 4e535d1..8e4e291 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -12,8 +12,8 @@ GEM
       i18n (~> 0.7)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (8.0.0)
     aws-sdk (2.10.53)
       aws-sdk-resources (= 2.10.53)
@@ -64,7 +64,7 @@ GEM
     pry (0.11.1)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.0.0)
+    public_suffix (5.0.0)
     rack (2.0.3)
     rack-protection (2.0.0)
       rack