diff --git a/Gemfile.lock b/Gemfile.lock
index 9be4df9..e850899 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 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)
     buftok (0.2.0)
     domain_name (0.5.20190701)
       unf (>= 0.0.5, < 1.0.0)
@@ -23,7 +23,7 @@ GEM
     multi_json (1.14.1)
     multipart-post (2.1.1)
     naught (1.1.0)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     rake (12.3.3)
     simple_oauth (0.3.1)
     thread_safe (0.3.6)