diff --git a/Gemfile.lock b/Gemfile.lock
index fed2316..2f03503 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,8 +28,8 @@ 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)
     arr-pm (0.0.10)
       cabin (> 0)
     aws-s3 (0.6.3)
@@ -137,7 +137,7 @@ GEM
       insist
       mustache (= 0.99.8)
       stud
-    public_suffix (4.0.3)
+    public_suffix (5.0.0)
     rack (2.0.9)
     rack-fiber_pool (0.9.3)
     rack-protection (2.0.8.1)