diff --git a/Gemfile.lock b/Gemfile.lock
index 3998819..24f9af9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,8 +6,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.1)
-      public_suffix (~> 2.0, >= 2.0.2)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.3.0)
     axiom-types (0.1.1)
       descendants_tracker (~> 0.0.4)
@@ -45,7 +45,7 @@ GEM
       ast (~> 2.2)
     path_expander (1.0.2)
     powerpack (0.1.1)
-    public_suffix (2.0.5)
+    public_suffix (5.0.0)
     rainbow (2.2.2)
       rake
     rake (13.0.3)