diff --git a/Gemfile.lock b/Gemfile.lock
index 05c8538..3938446 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     airbrussh (1.4.0)
       sshkit (>= 1.6.1, != 1.7.0)
     bcrypt_pbkdf (1.0.1)
@@ -71,7 +71,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (4.0.2)
+    public_suffix (5.0.0)
     rack (2.0.8)
     rack-protection (2.0.7)
       rack