diff --git a/Gemfile.lock b/Gemfile.lock
index bc9c5a9..48e5b00 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,8 +8,8 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
     ffi (1.12.2)
@@ -29,7 +29,7 @@ GEM
     minitest (5.11.3)
     proxy_pool (0.3.0)
       http (~> 4.4, >= 4.4.1)
-    public_suffix (4.0.5)
+    public_suffix (5.0.0)
     rake (13.0.1)
     unf (0.1.4)
       unf_ext