diff --git a/Gemfile.lock b/Gemfile.lock
index 5c038cc..4ae95d0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,8 +38,8 @@ GEM
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     arel (8.0.0)
     ast (2.4.0)
     axiom-types (0.1.1)
@@ -222,7 +222,7 @@ GEM
     pry-state (0.1.10)
       pry (>= 0.9.10, < 0.12.0)
     psych (3.1.0)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     puma (4.3.1)
       nio4r (~> 2.0)
     rack (2.0.8)