diff --git a/Gemfile.lock b/Gemfile.lock
index 8705f40..b0753bd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -20,8 +20,8 @@ GIT
 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)
     algorithmia (0.2.0)
       httparty (~> 0.13.1)
       json (~> 1.8)
@@ -109,7 +109,7 @@ GEM
     pry-byebug (3.7.0)
       byebug (~> 11.0)
       pry (~> 0.10)
-    public_suffix (4.0.1)
+    public_suffix (5.0.0)
     racc (1.5.2)
     rack (2.1.4)
     rack-protection (2.0.2)