diff --git a/Gemfile.lock b/Gemfile.lock
index b990b48..ac57ceb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.6.0)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
     artii (2.1.2)
     aws-eventstream (1.0.1)
     aws-partitions (1.140.0)
@@ -729,7 +729,7 @@ GEM
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    public_suffix (3.0.3)
+    public_suffix (4.0.6)
     rake (12.3.2)
     rb-readline (0.5.5)
     recursive-open-struct (1.1.0)