diff --git a/Gemfile.lock b/Gemfile.lock
index e627456c6..24b8e7749 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,8 +1,8 @@
 GEM
   remote: http://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)
     adsf (1.4.1)
       rack (>= 1.0.0, < 3.0.0)
     buftok (0.2.0)
@@ -95,7 +95,7 @@ GEM
     pry-byebug (3.6.0)
       byebug (~> 10.0)
       pry (~> 0.10)
-    public_suffix (3.0.2)
+    public_suffix (5.0.0)
     rack (2.1.2)
     rack-cache (1.7.1)
       rack (>= 0.4)