diff --git a/Gemfile.lock b/Gemfile.lock
index 0f431df..f4db5e7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -255,8 +255,8 @@ GEM
       tzinfo (~> 1.1)
     acts_as_list (0.9.19)
       activerecord (>= 3.0)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     anchored (1.1.0)
     arel (9.0.0)
     ast (2.4.2)
@@ -564,7 +564,7 @@ GEM
     premailer-rails (1.11.1)
       actionmailer (>= 3)
       premailer (~> 1.7, >= 1.7.9)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     puma (3.12.6)
     racc (1.5.2)
     rack (2.2.3)