diff --git a/Gemfile.lock b/Gemfile.lock
index 5ab9943..768142a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -4,8 +4,8 @@ GEM
     RubyInline (3.12.5)
       ZenTest (~> 4.3)
     ZenTest (4.12.0)
-    addressable (2.7.0)
-      public_suffix (>= 2.0.2, < 5.0)
+    addressable (2.8.1)
+      public_suffix (>= 2.0.2, < 6.0)
     builder (3.2.3)
     faraday (0.8.11)
       multipart-post (~> 1.2.0)
@@ -44,7 +44,7 @@ GEM
       multi_json (~> 1.3)
       multi_xml (~> 0.5)
       rack (>= 1.2, < 3)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     rack (2.2.3)
     rake (13.0.1)
     rdoc (6.2.0)