diff --git a/Gemfile.lock b/Gemfile.lock
index 53299aa..9e6d7f8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ GEM
       minitest (~> 5.1)
       tzinfo (~> 1.1)
       zeitwerk (~> 2.1, >= 2.1.8)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     builder (3.2.3)
     concurrent-ruby (1.1.5)
     descendants_tracker (0.0.4)
@@ -52,7 +52,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     rack (2.0.7)
     rake (12.3.3)
     rdoc (3.12.2)