diff --git a/Gemfile.lock b/Gemfile.lock
index 591f449..3e647d6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,8 +2,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     CFPropertyList (3.0.2)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     ast (2.4.1)
     atomos (0.1.3)
     aws-eventstream (1.1.0)
@@ -130,7 +130,7 @@ GEM
     parser (2.7.2.0)
       ast (~> 2.4.1)
     plist (3.5.0)
-    public_suffix (4.0.6)
+    public_suffix (5.0.0)
     rainbow (3.0.0)
     rake (13.0.1)
     regexp_parser (1.8.2)