diff --git a/Gemfile.lock b/Gemfile.lock
index b3e32a3..4565d8b 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -42,8 +42,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (9.0.0)
     ast (2.4.0)
     axiom-types (0.1.1)
@@ -138,7 +138,7 @@ GEM
     pry-rails (0.3.9)
       pry (>= 0.10.4)
     psych (3.1.0)
-    public_suffix (3.1.1)
+    public_suffix (5.0.0)
     puma (3.12.1)
     rack (2.0.7)
     rack-proxy (0.6.5)