diff --git a/Gemfile.lock b/Gemfile.lock
index 4c15545..73382cb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,8 +7,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.5.2)
-      public_suffix (>= 2.0.2, < 4.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     anyway_config (1.1.3)
     ast (2.4.1)
     coveralls (0.8.21)
@@ -26,7 +26,7 @@ GEM
     parallel (1.19.2)
     parser (2.7.1.4)
       ast (~> 2.4.1)
-    public_suffix (3.0.1)
+    public_suffix (4.0.7)
     rainbow (3.0.0)
     rake (13.0.1)
     regexp_parser (1.7.1)